Home > All publications > Articles, Juries > The Effect of Deliberation on Jury Verdicts
Jury foreperson and jury

By David Tait and Jane Goodman-Delahunty

This chapter uses insights from a mock trial, ‘the Sydney Bomber Case’, that involved a fictional alleged terrorist incident in which a young white man was accused of placing a bomb on a train that exploded after he alighted, killing innocent commuters in the centre of Sydney.

It asks questions such as:

  • How did jury members intend to vote prior to deliberation and after deliberation and what did this reveal?
  • What were the demographic and attitudinal differences in verdict shift following deliberation?
  • Does group deliberation reduce individual juror bias and prejudice?

It was found that deliberation did reduce conviction rates. Interestingly the difference was greatest in those who were most afraid of terrorism.


This chapter is useful for:

  • Students, teachers, researchers – in Law, Psychology and Communications
  • Practitioners of law and criminal justice
  • Forensic scientists and psychologists
  • Police, national security officers and court officials
  • Policymakers
  • Journalists.
Buy the chapter

The book

This chapter is in the book Juries, Science and Popular Culture in the Age of Terror


Companion chapter

Another chapter on jury deliberation is a valuable companion to this one.

Chapter 14: Making Sense of The Evidence: Jury Deliberation and Common Sense


Other chapters

Other chapters from  Juries, Science and Popular Culture in the Age of Terror that provide research insights arising from the ‘the Sydney Bomber Case’ are:

Chapter 4: Animating the Bomber: The Sydney Bomber Trial

Chapter 7: Displaying the Bomb on the Train: The Challenge of Preparing Visual Evidence

Chapter 8: Research Aims and Methods

Chapter 9: The Sydney Bomber Study: Introducing the Mock Jurors

Chapter 10: Images of Interactive Virtual Environments: Do They Affect Verdict?

Chapter 11: How Juries Talked About Visual Evidence

Chapter 12: CSI Effects on Jury Reasoning and Verdicts