Conference: Truth and Authority in Criminal Justice

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On 23 and 24 October 2025, the Maastricht Institute for Criminal Sciences will organise – in collaboration with partners within and outside the Faculty of Law of Maastricht University – a multidisciplinary two day-conference in Maastricht on “Truth and Authority in Criminal Justice”. The conference builds on the notion that – in both the popular and the scholarly debate – there is an increasing concern that we are living in the midst of a “post-truth” or “post-factual” society, which is essentially characterised by a particular distrust in public truth claims and in authority to be a legitimate public truth-teller. The goal of the conference is to explore how post-truth narratives and politics may influence and challenge criminal law.

The conference format will be a mixture of plenary keynote sessions and small panel sessions. Key note-speakers who confirmed their participation include Prof. dr. Brian Leiter (Professor of Jurisprudence; Director, Center for Law, Philosophy & Human Values, University of Chicago, USA), Prof. dr. Sabine Gless (Professor of Criminal Law and Procedure at the University of Basel School of Law, Switzerland) and Prof. dr. Sander van der Linden (Professor of Social Psychology in Society, Cambridge, United Kingdom).  

Next to the keynote presentations, 14 panel sessions will take place during five different time slots. During each time slot (of 90 minutes), the participants can make a choice of attending one of the three (or two) parallel sessions that are scheduled in this period. Each panel session consists of three (or four) presentations of approximately 20 minutes, followed by a discussion between the panellists and the audience. 

The keynote and (most of) the panel sessions will be related to the following three subthemes: 

Conspiracy Theories and Crime
Conspiracy theories are widespread, including beliefs that an evil elite is trying to suppress citizens, anti-vaccination conspiracy theories, and the far-right “Great Replacement Theory”. One key feature of conspiracy theories is that they may stimulate crime and radical action, such as the arsoning of 5G telecommunication masts during the pandemic and the insurrection at the US Capitol. Conspiracy beliefs decrease people’s willingness to obey the law, undermine democratic institutions, and legitimize violence. Where should one draw the line between personal beliefs versus dangerous rhetoric? How should criminal policy and criminal law deal with online and offline conspiracy theories? 

Technology as the authority in legal fact-finding
New technologies, such as AI-based systems (AIS), are increasingly used in investigating and adjudicating criminal liability. On one hand, AIS can be used to discover new evidence, and their outputs could enter the trial as a new type of scientific evidence. On the other hand, AIS are also acquiring a "truth-telling" function: for example, one could think of the use of AIS used by service providers to flag and remove illicit content on social media platforms. Thus, there are several issues which arise when new technology “enters” the criminal justice arena. Human beings, including trier of facts, are prone to trust blindly the outputs of technology, while AIS can also “hallucinate" and create alternative truths. Moreover, due to AIS’ inherent characteristics, human subjects might not be skilled (enough) to question the reliability of the systems’ outputs. Could this lead to considering AI evidence as the “absolute truth"? Should there be trust in AI generated evidence?

Criminalisation challenges in a post-truth society
When the public debate is affected by the spreading of fake news, how should criminal law respond to this post-truth phenomenon? Many will not doubt the need for criminalisation of false information that is apt to incite people to hatred or violence. But should we also criminalise other forms of potentially harmful misinformation, especially when this could lead to the silencing of ‘unwanted’ opinions? The notions of truth and fake news are often part of an illiberal practice to limit access to information and to penalize critical voices against the government. How to guarantee the protection of truth in our pluralistic society without unwarranted state censorship and without people losing the capacity to distinguish the authoritative and the authoritarian? 

Below, you can find an overview of the keynote presentations and panel sessions, as well as the conference fees. 

Programme

Thursday 23 October 2025

09.15 - 10.00 hrsWelcome and registration
10.00 - 10.15 hrsOpening Hans Nelen and Jan Smits (Dean of the Faculty of Law)
10.15 - 11.00 hrsKeynote speaker Brian Leiter (Professor of Jurisprudence; Director, Center for Law, Philosophy & Human Values, University of Chicago, USA)
11.15 - 12.45 hrsPanel sessions round 1 with 3 parallel sessions:
Session 1: Philosophical perspectives on Post-Truth Criminalisation
Session 2: Conspiracy theories and committing crime
Session 3: Truth Wars: AI, Fact-Checking, and Verifying Atrocities
12.45 - 13.45 hrsLunch
13.45 - 14.30 hrsKeynote speaker Sabine Gless (Professor of Criminal Law and Procedure at the University of Basel School of Law, Switzerland)
14.45 - 16.15 hrsPanel sessions round 2 with 3 parallel sessions: 
Session 1: Criminalisation & Harm I
Session 2: European dimensions of post-truth criminal justice
Session 3: Truth on Trial: Technology, Evidence, and Credibility across Legal Systems
16.30 - 18.00 hrsPanel sessions round 3 with 3 parallel sessions: 
Session 1: Post-truth criminalisation and State Power
Session 2: Causes and consequences of conspiracy theories
Session 3: The Algorithm as Witness: Due Process and Evidence Concerns
18.00 - 19.00 hrsDrinks
19.30 hrsDinner

Friday 24 October 2025 
10.00 - 10.45 hrsKeynote speaker Sander van der Linden (Professor of Social Psychology in Society, Cambridge, United Kingdom)
11.00 - 12.30 hrsPanel sessions round 4 with 3 parallel sessions: 
Session 1: Criminalisation and Harm II
Session 2: Conspiracy theories in the courts
Session 3: Machine-Certified Truths? AI, DNA, and the Authority of Digital Evidence and Legal Fact Finding
12.30 - 13.30 hrsLunch
13.30 - 15.00 hrsPanel sessions round 5 with 2 parallel sessions: 
Session 1: Criminalisation and alternatives
Session 2: Science in court (evidence gathering and interviewing)
15.15 - 15.45 hrsClosure by David Roef

Conference fees



There will be conference fees for participation. On the right side, you can find an overview of the rates. The early bird fees will be bookable up to mid July. From 15 July 2025 only regular fees will be available. 

Conference fees panellist: 

Registration PhD panellist (early bird fee)€ 100
Registration PhD panellist (regular fee)€ 150
Registration senior panellist (early bird fee)€ 195
Registration senior panellist (regular fee)€ 250

Conference fees participants: 

Registration PhD (early bird fee)€ 120
Registration PhD (regular fee)€ 150
Registration senior (early bird fee)€ 195
Registration senior (regular fee)€ 250

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