Conversation so far:
how many episodes of ncis have there been
As of January 28, 2020, 392 episodes of the TV series NCIS have aired.
what does ncis stand for
The United States Naval Criminal Investigative Service (NCIS) is the primary law enforcement agency of the U.S. Department of the Navy.
how much ncis personnel are civilian
The vast majority of NCIS personnel are civilian, with half being special agents.

Question: what does the agency do
Self-contained rewrite: what does ncis do