Court trials have strict rules about what evidence can be...
Overview of Evidence Rules in Court Trials with Practical Examples

Admissible and Reliable Evidence
Ever wondered why some evidence gets thrown out of court even when it seems important? Admissible evidence must be obtained legally - if police break the law to get it, it can't be used in trial.
Take searching someone's flat without a warrant or using entrapment (tricking suspects into confessing). The Brendan Daccey case shows how this can go wrong - police manipulated someone with learning difficulties into confessing to murder, leading to a wrongful conviction.
You've got the right to silence as a fundamental protection. This means you don't have to answer questions or prove your innocence because you're innocent until proven guilty. However, staying silent about specific things (like possession of a weapon) might make the jury suspicious, unless you've got a believable reason.
Reliable evidence must be credible, authentic and accurate - basically, would the jury believe it? Evidence can't be tampered with or forged. Courts sometimes consider character evidence about defendants (like previous lies or similar crimes), but this is heavily restricted to keep things fair.
Key Point: Evidence rules protect you from unfair treatment whilst ensuring juries get trustworthy information to make their decisions.

Disclosure and Hearsay Evidence
Think it's unfair to be surprised by evidence in court? That's where disclosure of evidence comes in - both sides must share their evidence so everyone can prepare properly.
The prosecution has to show the defence what evidence they plan to use AND what they won't be using. This sounds straightforward, but technology makes it tricky - imagine sorting through thousands of text messages! Sometimes police deliberately hide evidence they think might help the defendant, which is completely wrong.
The Liam Allen case perfectly shows this problem. He was wrongly accused of rape because police only disclosed text messages that seemed to support their case, hiding ones that proved his innocence. When the full evidence came out, the case collapsed.
Hearsay evidence is when someone repeats what they heard someone else say outside court. This is usually banned because the original person isn't under oath and might be lying. However, judges can allow it if the original person has died, is seriously ill, or lives abroad, and it serves justice.
Remember: The Steven Saunders case was groundbreaking - the first time hearsay evidence from a midwife was used to convict someone of controlling behaviour when the victim was too scared to testify.
We thought you’d never ask...
What is the Knowunity AI companion?
Our AI Companion is a student-focused AI tool that offers more than just answers. Built on millions of Knowunity resources, it provides relevant information, personalised study plans, quizzes, and content directly in the chat, adapting to your individual learning journey.
Where can I download the Knowunity app?
You can download the app from Google Play Store and Apple App Store.
Is Knowunity really free of charge?
That's right! Enjoy free access to study content, connect with fellow students, and get instant help – all at your fingertips.
Similar content
Most popular content: Criminology
9Criminology: Crime & Punishment Overview
Comprehensive mindmaps covering key concepts in the Crime and Punishment topic for WJEC Criminology Unit 4. This resource includes detailed insights into the Criminal Justice System, crime prevention strategies, sentencing models, and the roles of various agencies. Ideal for A-Level revision, ensuring you grasp essential theories and legislative processes to excel in your exams.
Criminology Theories Overview
Explore key criminology theories and their implications on crime and deviance. This comprehensive summary covers biological, psychological, and sociological perspectives, including labelling theory, right realism, and the impact of social campaigns on policy development. Ideal for A-Level criminology students seeking to understand the complexities of criminal behaviour and the factors influencing crime prevention strategies.
Criminology Theories Overview
Explore key concepts in criminology with this comprehensive summary covering Marxism, deviant behavior, biological theories, and more. Ideal for Year 12 students studying Unit 2, this resource provides textbook-accurate insights into the criminal justice system, individual rights, and various criminological theories. Enhance your understanding of crime and deviance with annotated notes designed for effective learning.
Criminology Unit 2 Overview
Explore a comprehensive summary of key concepts in criminology for WJEC Level 3 Unit 2. This document covers essential theories of crime, including biological, sociological, and psychological perspectives, as well as the impact of media, labelling theory, and crime types. Ideal for students preparing for exams or seeking a concise reference on crime and deviance.
Criminological Theories Overview
Explore key criminological theories including Marxism, Strain Theory, Labelling Theory, and Realism. This summary covers the impact of social structures on crime, the role of individual behavior, and the implications for crime policy and prevention. Ideal for WJEC Level 3 students studying criminology, this resource provides concise insights into the complexities of crime and deviance.
Forensic Psychology Overview
Comprehensive revision notes covering key concepts in forensic psychology for AQA A Level Psychology. Explore topics such as offender profiling, criminal personality, behavioral approaches, and the impact of socialization on criminal behavior. Ideal for students preparing for exams and seeking a deeper understanding of the psychological aspects of crime and punishment.
Comprehensive Crime Theories Overview
Explore a detailed overview of crime and deviance theories for AQA A-Level Sociology. This resource covers key concepts including biological theories, labelling theory, globalisation impacts, victimology, and the role of media in crime. Ideal for revision, it provides insights into social control, punishment, and the intersection of crime with gender and ethnicity.
Criminality and Justice Overview
Explore comprehensive insights into criminal behavior, theories of crime, and the evolution of legal frameworks. This study note covers key concepts such as biological and sociological theories, public protection sentencing, and the impact of pressure groups on criminological policy. Ideal for students preparing for exams in criminology and criminal justice.
Evaluating Criminal Investigation Roles
This study note provides a comprehensive evaluation of the effectiveness of various personnel involved in criminal investigations, including Crime Scene Investigators, Forensic Scientists, Pathologists, and the Crown Prosecution Service. It covers their roles, strengths, limitations, and the impact of their work on the criminal justice system. Ideal for criminology students and those studying law enforcement principles.
Most popular content in Criminology
9Criminology: Crime & Punishment Overview
Comprehensive mindmaps covering key concepts in the Crime and Punishment topic for WJEC Criminology Unit 4. This resource includes detailed insights into the Criminal Justice System, crime prevention strategies, sentencing models, and the roles of various agencies. Ideal for A-Level revision, ensuring you grasp essential theories and legislative processes to excel in your exams.
WJEC Unit 4 Criminology
Criminology unit 4 detailed revision note
Criminology Theories Overview
Explore key criminology theories and their implications on crime and deviance. This comprehensive summary covers biological, psychological, and sociological perspectives, including labelling theory, right realism, and the impact of social campaigns on policy development. Ideal for A-Level criminology students seeking to understand the complexities of criminal behaviour and the factors influencing crime prevention strategies.
Criminology WJEC unit 2
Unit 2 notes for criminology certificate WJEC
Criminology Theories Overview
Explore key concepts in criminology with this comprehensive summary covering Marxism, deviant behavior, biological theories, and more. Ideal for Year 12 students studying Unit 2, this resource provides textbook-accurate insights into the criminal justice system, individual rights, and various criminological theories. Enhance your understanding of crime and deviance with annotated notes designed for effective learning.
Criminology Unit 2 Overview
Explore a comprehensive summary of key concepts in criminology for WJEC Level 3 Unit 2. This document covers essential theories of crime, including biological, sociological, and psychological perspectives, as well as the impact of media, labelling theory, and crime types. Ideal for students preparing for exams or seeking a concise reference on crime and deviance.
Criminological Theories Overview
Explore key criminological theories including Marxism, Strain Theory, Labelling Theory, and Realism. This summary covers the impact of social structures on crime, the role of individual behavior, and the implications for crime policy and prevention. Ideal for WJEC Level 3 students studying criminology, this resource provides concise insights into the complexities of crime and deviance.
Criminology Unit 4 Revision Cards
These were the revision cards I used for my Criminology Unit 4 exam. Feel free to print these out and use them as an exam resource, they have been colour coded for each AC. Good luck!
Criminology Unit 2
Part 2/2
Most popular content
9Sociology of Education Overview
Explore comprehensive A-Level Sociology notes on the education system, covering key theories, policies, and sociological perspectives. This resource includes insights on marketisation, gender roles, cultural deprivation, and educational inequalities, providing a thorough understanding of how education shapes social stratification and individual achievement. Ideal for exam preparation and in-depth study.
Sociology of Families: Comprehensive Revision
Dive into an extensive overview of family dynamics, perspectives, and patterns in sociology. This resource covers key concepts such as family diversity, gender roles, marriage, and the impact of social policies on family structures. Perfect for A-Level Sociology students preparing for Paper 2.
Criminology: Crime & Punishment Overview
Comprehensive mindmaps covering key concepts in the Crime and Punishment topic for WJEC Criminology Unit 4. This resource includes detailed insights into the Criminal Justice System, crime prevention strategies, sentencing models, and the roles of various agencies. Ideal for A-Level revision, ensuring you grasp essential theories and legislative processes to excel in your exams.
Comprehensive Crime & Deviance Overview
Explore an extensive revision of crime and deviance topics, including theories, types of crime, and the impact of media. This resource covers key concepts such as Marxism, functionalism, gender and crime, and the influence of globalization on criminal behavior. Ideal for students seeking a thorough understanding of criminology and its various theories. Type: Full Topic Revision.
Cell Biology and Cell structure
cell structures
An Inspector Calls: Character Insights
Explore in-depth analysis and key quotes for characters in J.B. Priestley's 'An Inspector Calls'. This resource covers Gerald Croft, Inspector Goole, Sheila Birling, Mrs. Birling, Eric Birling, and Eva Smith, focusing on themes of class, gender roles, and social responsibility. Ideal for students aiming for Grade 8 and above.
WJEC Unit 4 Criminology
Criminology unit 4 detailed revision note
Criminology Theories Overview
Explore key criminology theories and their implications on crime and deviance. This comprehensive summary covers biological, psychological, and sociological perspectives, including labelling theory, right realism, and the impact of social campaigns on policy development. Ideal for A-Level criminology students seeking to understand the complexities of criminal behaviour and the factors influencing crime prevention strategies.
Romeo and Juliet: Key themes
Key Romeo and Juliet themes and analysed quotes
Can't find what you're looking for? Explore other subjects.
Students love us — and so will you.
The app is very easy to use and well designed. I have found everything I was looking for so far and have been able to learn a lot from the presentations! I will definitely use the app for a class assignment! And of course it also helps a lot as an inspiration.
This app is really great. There are so many study notes and help [...]. My problem subject is French, for example, and the app has so many options for help. Thanks to this app, I have improved my French. I would recommend it to anyone.
Wow, I am really amazed. I just tried the app because I've seen it advertised many times and was absolutely stunned. This app is THE HELP you want for school and above all, it offers so many things, such as workouts and fact sheets, which have been VERY helpful to me personally.
Overview of Evidence Rules in Court Trials with Practical Examples
Court trials have strict rules about what evidence can be used to ensure fairness and justice. Understanding these evidence rules is crucial for anyone studying law, as they protect defendants' rights whilst helping juries make informed decisions based on reliable...

Admissible and Reliable Evidence
Ever wondered why some evidence gets thrown out of court even when it seems important? Admissible evidence must be obtained legally - if police break the law to get it, it can't be used in trial.
Take searching someone's flat without a warrant or using entrapment (tricking suspects into confessing). The Brendan Daccey case shows how this can go wrong - police manipulated someone with learning difficulties into confessing to murder, leading to a wrongful conviction.
You've got the right to silence as a fundamental protection. This means you don't have to answer questions or prove your innocence because you're innocent until proven guilty. However, staying silent about specific things (like possession of a weapon) might make the jury suspicious, unless you've got a believable reason.
Reliable evidence must be credible, authentic and accurate - basically, would the jury believe it? Evidence can't be tampered with or forged. Courts sometimes consider character evidence about defendants (like previous lies or similar crimes), but this is heavily restricted to keep things fair.
Key Point: Evidence rules protect you from unfair treatment whilst ensuring juries get trustworthy information to make their decisions.

Disclosure and Hearsay Evidence
Think it's unfair to be surprised by evidence in court? That's where disclosure of evidence comes in - both sides must share their evidence so everyone can prepare properly.
The prosecution has to show the defence what evidence they plan to use AND what they won't be using. This sounds straightforward, but technology makes it tricky - imagine sorting through thousands of text messages! Sometimes police deliberately hide evidence they think might help the defendant, which is completely wrong.
The Liam Allen case perfectly shows this problem. He was wrongly accused of rape because police only disclosed text messages that seemed to support their case, hiding ones that proved his innocence. When the full evidence came out, the case collapsed.
Hearsay evidence is when someone repeats what they heard someone else say outside court. This is usually banned because the original person isn't under oath and might be lying. However, judges can allow it if the original person has died, is seriously ill, or lives abroad, and it serves justice.
Remember: The Steven Saunders case was groundbreaking - the first time hearsay evidence from a midwife was used to convict someone of controlling behaviour when the victim was too scared to testify.
We thought you’d never ask...
What is the Knowunity AI companion?
Our AI Companion is a student-focused AI tool that offers more than just answers. Built on millions of Knowunity resources, it provides relevant information, personalised study plans, quizzes, and content directly in the chat, adapting to your individual learning journey.
Where can I download the Knowunity app?
You can download the app from Google Play Store and Apple App Store.
Is Knowunity really free of charge?
That's right! Enjoy free access to study content, connect with fellow students, and get instant help – all at your fingertips.
Similar content
Most popular content: Criminology
9Criminology: Crime & Punishment Overview
Comprehensive mindmaps covering key concepts in the Crime and Punishment topic for WJEC Criminology Unit 4. This resource includes detailed insights into the Criminal Justice System, crime prevention strategies, sentencing models, and the roles of various agencies. Ideal for A-Level revision, ensuring you grasp essential theories and legislative processes to excel in your exams.
Criminology Theories Overview
Explore key criminology theories and their implications on crime and deviance. This comprehensive summary covers biological, psychological, and sociological perspectives, including labelling theory, right realism, and the impact of social campaigns on policy development. Ideal for A-Level criminology students seeking to understand the complexities of criminal behaviour and the factors influencing crime prevention strategies.
Criminology Theories Overview
Explore key concepts in criminology with this comprehensive summary covering Marxism, deviant behavior, biological theories, and more. Ideal for Year 12 students studying Unit 2, this resource provides textbook-accurate insights into the criminal justice system, individual rights, and various criminological theories. Enhance your understanding of crime and deviance with annotated notes designed for effective learning.
Criminology Unit 2 Overview
Explore a comprehensive summary of key concepts in criminology for WJEC Level 3 Unit 2. This document covers essential theories of crime, including biological, sociological, and psychological perspectives, as well as the impact of media, labelling theory, and crime types. Ideal for students preparing for exams or seeking a concise reference on crime and deviance.
Criminological Theories Overview
Explore key criminological theories including Marxism, Strain Theory, Labelling Theory, and Realism. This summary covers the impact of social structures on crime, the role of individual behavior, and the implications for crime policy and prevention. Ideal for WJEC Level 3 students studying criminology, this resource provides concise insights into the complexities of crime and deviance.
Forensic Psychology Overview
Comprehensive revision notes covering key concepts in forensic psychology for AQA A Level Psychology. Explore topics such as offender profiling, criminal personality, behavioral approaches, and the impact of socialization on criminal behavior. Ideal for students preparing for exams and seeking a deeper understanding of the psychological aspects of crime and punishment.
Comprehensive Crime Theories Overview
Explore a detailed overview of crime and deviance theories for AQA A-Level Sociology. This resource covers key concepts including biological theories, labelling theory, globalisation impacts, victimology, and the role of media in crime. Ideal for revision, it provides insights into social control, punishment, and the intersection of crime with gender and ethnicity.
Criminality and Justice Overview
Explore comprehensive insights into criminal behavior, theories of crime, and the evolution of legal frameworks. This study note covers key concepts such as biological and sociological theories, public protection sentencing, and the impact of pressure groups on criminological policy. Ideal for students preparing for exams in criminology and criminal justice.
Evaluating Criminal Investigation Roles
This study note provides a comprehensive evaluation of the effectiveness of various personnel involved in criminal investigations, including Crime Scene Investigators, Forensic Scientists, Pathologists, and the Crown Prosecution Service. It covers their roles, strengths, limitations, and the impact of their work on the criminal justice system. Ideal for criminology students and those studying law enforcement principles.
Most popular content in Criminology
9Criminology: Crime & Punishment Overview
Comprehensive mindmaps covering key concepts in the Crime and Punishment topic for WJEC Criminology Unit 4. This resource includes detailed insights into the Criminal Justice System, crime prevention strategies, sentencing models, and the roles of various agencies. Ideal for A-Level revision, ensuring you grasp essential theories and legislative processes to excel in your exams.
WJEC Unit 4 Criminology
Criminology unit 4 detailed revision note
Criminology Theories Overview
Explore key criminology theories and their implications on crime and deviance. This comprehensive summary covers biological, psychological, and sociological perspectives, including labelling theory, right realism, and the impact of social campaigns on policy development. Ideal for A-Level criminology students seeking to understand the complexities of criminal behaviour and the factors influencing crime prevention strategies.
Criminology WJEC unit 2
Unit 2 notes for criminology certificate WJEC
Criminology Theories Overview
Explore key concepts in criminology with this comprehensive summary covering Marxism, deviant behavior, biological theories, and more. Ideal for Year 12 students studying Unit 2, this resource provides textbook-accurate insights into the criminal justice system, individual rights, and various criminological theories. Enhance your understanding of crime and deviance with annotated notes designed for effective learning.
Criminology Unit 2 Overview
Explore a comprehensive summary of key concepts in criminology for WJEC Level 3 Unit 2. This document covers essential theories of crime, including biological, sociological, and psychological perspectives, as well as the impact of media, labelling theory, and crime types. Ideal for students preparing for exams or seeking a concise reference on crime and deviance.
Criminological Theories Overview
Explore key criminological theories including Marxism, Strain Theory, Labelling Theory, and Realism. This summary covers the impact of social structures on crime, the role of individual behavior, and the implications for crime policy and prevention. Ideal for WJEC Level 3 students studying criminology, this resource provides concise insights into the complexities of crime and deviance.
Criminology Unit 4 Revision Cards
These were the revision cards I used for my Criminology Unit 4 exam. Feel free to print these out and use them as an exam resource, they have been colour coded for each AC. Good luck!
Criminology Unit 2
Part 2/2
Most popular content
9Sociology of Education Overview
Explore comprehensive A-Level Sociology notes on the education system, covering key theories, policies, and sociological perspectives. This resource includes insights on marketisation, gender roles, cultural deprivation, and educational inequalities, providing a thorough understanding of how education shapes social stratification and individual achievement. Ideal for exam preparation and in-depth study.
Sociology of Families: Comprehensive Revision
Dive into an extensive overview of family dynamics, perspectives, and patterns in sociology. This resource covers key concepts such as family diversity, gender roles, marriage, and the impact of social policies on family structures. Perfect for A-Level Sociology students preparing for Paper 2.
Criminology: Crime & Punishment Overview
Comprehensive mindmaps covering key concepts in the Crime and Punishment topic for WJEC Criminology Unit 4. This resource includes detailed insights into the Criminal Justice System, crime prevention strategies, sentencing models, and the roles of various agencies. Ideal for A-Level revision, ensuring you grasp essential theories and legislative processes to excel in your exams.
Comprehensive Crime & Deviance Overview
Explore an extensive revision of crime and deviance topics, including theories, types of crime, and the impact of media. This resource covers key concepts such as Marxism, functionalism, gender and crime, and the influence of globalization on criminal behavior. Ideal for students seeking a thorough understanding of criminology and its various theories. Type: Full Topic Revision.
Cell Biology and Cell structure
cell structures
An Inspector Calls: Character Insights
Explore in-depth analysis and key quotes for characters in J.B. Priestley's 'An Inspector Calls'. This resource covers Gerald Croft, Inspector Goole, Sheila Birling, Mrs. Birling, Eric Birling, and Eva Smith, focusing on themes of class, gender roles, and social responsibility. Ideal for students aiming for Grade 8 and above.
WJEC Unit 4 Criminology
Criminology unit 4 detailed revision note
Criminology Theories Overview
Explore key criminology theories and their implications on crime and deviance. This comprehensive summary covers biological, psychological, and sociological perspectives, including labelling theory, right realism, and the impact of social campaigns on policy development. Ideal for A-Level criminology students seeking to understand the complexities of criminal behaviour and the factors influencing crime prevention strategies.
Romeo and Juliet: Key themes
Key Romeo and Juliet themes and analysed quotes
Can't find what you're looking for? Explore other subjects.
Students love us — and so will you.
The app is very easy to use and well designed. I have found everything I was looking for so far and have been able to learn a lot from the presentations! I will definitely use the app for a class assignment! And of course it also helps a lot as an inspiration.
This app is really great. There are so many study notes and help [...]. My problem subject is French, for example, and the app has so many options for help. Thanks to this app, I have improved my French. I would recommend it to anyone.
Wow, I am really amazed. I just tried the app because I've seen it advertised many times and was absolutely stunned. This app is THE HELP you want for school and above all, it offers so many things, such as workouts and fact sheets, which have been VERY helpful to me personally.