- Home Office Scientific Development Branch (UK)
- National Policing Improvement Agency (UK)
- Scottish Police Services Authority (UK)
- Forensic Science Northern Ireland (UK)
- UK Security Service (MI5)
- Central Intelligence Agency (US)
- Federal Bureau of Investigation (US)
- National Criminal Justice Reference Service (US)
- United States Secret Service
- National Forensic Science Technology Centre (US)
- National Forensic Academy (University of Tennessee) (US)
- Bureau of Alcohol, Tobacco and Firearms Laboratories (US)
- US Fish and Wildlife Service Forensics Laboratory
- Columbia International Forensics Laboratory
- International Criminal Police Organization (Interpol)
