John’s research interests centre on criminal law theory, and particularly the internal structuring of offences and defences within the general part, where he has published widely.
John has contributed to several law reform and review exercises, including:
- Law Commission consultations on Attempt; Conspiracy; Assisting and Encouraging; Intoxication; Bribery; Offences Against the Person; New Programmes of Law Reform;
- House of Common's Justice Committee - Post Legislative Scrutiny of the Serious Crime Act 2007;
- Cabinet Office - consultancy on corruption legislation.
John provides expert peer review for the Criminal Law Review; Oxford Journal of Legal Studies; Criminal Law and Philosophy; Netherlands Journal of Legal Philosophy; and the AHRC (Peer Review College).