What Every Law Enforcement Officer Should Know About DNA Evidence

Investigators and Evidence Technicians

Considerations for Blood Evidence

Home | Glossary | Resources | Help | Contact Us | Course Map

Image of evidence technician placing evidence in paper bag — National Institute of Justice (NIJ) (see reuse policy).

Considerations for blood evidence:

Air-dry entire item or swabs that were used to collect the evidence
Label every item, package and seal (separately) in paper bags or boxes
Keep all blood evidence as cold as possible
Submit all evidence to the laboratory as soon as possible

Additional Online Courses

See additional NIJ-sponsored training

Date Created: June 12, 2023