Maybe Google is your friend?
HIDTA=High Intensity Drug Trafficking Areas, a federal law enforcement program.
That talkgroup is right in the middle of Border Patrol, DEA, BATF, etc. Makes sense to me. No hits in my log.
High Intensity Drug Trafficking Areas (HIDTA) program, created by Congress with the Anti-Drug Abuse Act of 1988, provides assistance to Federal, state, local, and tribal law enforcement agencies operating in areas determined to be critical drug-trafficking regions of the United States.