He said he began acting in the undercover role in August 1989 and signed a formal agreement to that effect with prosecutors three months later.

Tubbs begins to worry that Crockett may be getting too deeply involved in his undercover role and fears for the team's safety.

There are two principal problems that can affect agents working in undercover roles.

The Post report said that this could be done covertly, using soldiers in an undercover role.

One of her undercover roles led to her dismissal from the service.

Harkness also would play a few undercover roles for the squad, convincingly managing to be other slimy, criminal types.

I've organised your usual undercover role as a freelance reporter; see what you can dig up.

Agents on the street sometimes have been drawn out of undercover roles to prevent bank robberies, assaults, even murders.

In his undercover role, however, Salem himself was in constant danger of exposure.

Other evidence of how worldly Sabrina really is was most often provided by her undercover roles.