U.S. flag

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

Law 101: Legal Guide for the Forensic Expert

Affidavits

Photo of a judge, attorney, and witness convening at a courtroom stand. Caption reads, 'Law 101, Affidavits'.
National Institute of Justice (NIJ) (see reuse policy).

Learning Objectives

After completing Affidavits, the user should know:

  • When an affidavit is required to substantiate an arrest warrant.
  • When an affidavit is required for a preliminary hearing or grand jury.

Back Forward