Defense Criminal Investigative Service [DCIS] Law and Legal Definition

The Defense Criminal Investigative Service (DCIS) is a federal agency of the Department of Defense. The members of the DCIS are known as criminal investigators. They are authorized to carry out various functions that include:

1.Carrying firearms;

2. Investigating violations of U.S. law;

3. Executing search and arrest warrants;

4. Serving subpoenas.

The DCIS is authorized to investigate offenses under the Uniform Code of Military Justice (UCMJ). The DCIS is also authorized to investigate any criminal matter in which an active member of the U.S. military is a possible suspect.[United States v. Lovelace, 2008 U.S. Dist. LEXIS 7304 (W.D. Ky. Jan. 31, 2008)]