61.   Law enforcement officials said Perez had been identified as a heroin buyer by an undercover officer.

62.   Mitchell has served time for gun possession and selling narcotics to an undercover officer.

63.   More sophisticated stings include undercover officers dressed like drug dealers working in apartments that pose as drug dens.

64.   More than anything else, it is sheer ambition that leads undercover officers to their line of work.

65.   Now number among the writing ranks Lucas Miller, a New York City police detective and former narcotics undercover officer.

66.   On Tuesday evening, police issued a department-wide alert, and undercover officers in the Castro were told to be on the lookout for Cunanan.

67.   One undercover officer, steered in by an accomplice working in the street, entered the hallway to buy drugs, the police said.

68.   One of the Austin officers has pleaded guilty to robbing an undercover officer posing as a drug dealer.

69.   President Bush last week dispatched undercover DOT officers to canvas airports and evaluate personnel security performance.

70.   Protest leaders contend that undercover officers have infiltrated the building that houses their headquarters.