21.   He won a reputation for a street-smart cop, who relished his undercover work against drug dealers.

22.   His appearance followed two days of testimony by Brian Shepard, the FBI agent who supervised Whitacre during his undercover work.

23.   His undercover work went unmentioned in his trial at Belfast Crown Court.

24.   In Boston, as elsewhere, the percentage of blacks assigned to undercover work is usually greater than their overall numbers on the police force.

25.   Irish police are more restricted then officers in other Western countries, with strict limits on the questioning of suspects and prohibitions on undercover work.

26.   Lawrence plays Malcolm, an FBI agent with a penchant for doing undercover work in full body makeup.

27.   Many in journalism feel that undercover work involving deception is never proper.

28.   Married and the father of one child, Cowan has been under special police protection since his undercover work was disclosed.

29.   Mexican authorities soon discovered that at least some undercover work had been conducted in Mexico, without Mexican permission, Attorney General Jorge Madrazo Cuellar said at the time.

30.   Obviously, he can no longer do undercover work.