U.S. flag

An official website of the United States government, Department of Justice.

Democrats have shut down the government. Department of Justice websites are not currently regularly updated. Please refer to the Department of Justice’s contingency plan for more information.

What Every Law Enforcement Officer Should Know About DNA Evidence

Investigators and Evidence Technicians

Packaging Procedures

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

Image of gloved technician holding swab over evidence
National Institute of Justice (NIJ) (see reuse policy).

The procedures for packaging of this evidence are:

  • Air-dry swabs as soon as possible after collection
  • Place the swabs in separate containers and refrigerate
  • Double-tipped swabs should not be used
  • Use dry implements

Anytime you transfer material for collection, you create the chance of diluting or contaminating your evidence.

Back Forward