Central Detective Training Institute (CDTI), Ghaziabad, is a government training institute under the Bureau of Police Research & Development (BPR&D), Ministry of Home Affairs, Government of India. Its role is to strengthen policing through systematic study, professional training, and the application of science and technology to police methods and investigation. The institute is developing as a Centre of Excellence in counter-terrorism, counter-insurgency, and related issues.

CDTI Ghaziabad trains in-service police officers from Sub-Inspector to Deputy Superintendent of Police level, helping them build skills in emerging technologies and improve crime-investigation practices. Its training activities include indoor and outdoor instruction, courses, special programmes, webinars, conferences, seminars, and workshops. The institute also offers online and hybrid courses and provides joining instructions and a course calendar through its website.

The campus includes a state-of-the-art cyber laboratory, classrooms with digital smart boards and podiums, syndicate rooms, and a modern interrogation room. Guided by a commitment to good practices and standards, CDTI aims to support capable, professional police forces and effective service to communities.