DNA is a vital tool for policing. Samples can be taken from a subject, as well as a crime scene.
Powers under the Criminal Procedure (Scotland) Act 1995 (as amended) allow Police Scotland to take and retain samples from certain individuals.
The National Systems Support department in Police Scotland administers the Scottish DNA Database. Forensic Services does the DNA profiling.
All profiles on the Scottish DNA Database are exported to the National DNA Database (except volunteers for intelligence-led screenings). This gives all police forces throughout the UK the ability to search for profile and crime scene matches.
