A post-blast investigation (PBI) exercise was held on 31 January to 2 February 2024 at the former Khalsa Crescent Prison (KCP), Admiralty Road West. The exercise was conducted by the Singapore Police Force (SPF) and supported by HTX (Home Team Science & Technology Agency), the Singapore Armed Forces (SAF) Chemical, Biological, Radiological & Explosives Defence Group (CBRE DG), DSO National Laboratories (DSO) and Singapore Civil Defence Force (SCDF). This joint exercise is part of SPF’s ongoing efforts to enhance its operational readiness for post-blast investigations and also tested multi-agency response and coordination involving close to 100 personnel.