A violent drug-dealing gang was responsible for the shooting of an Anne Arundel County police officer last September, federal authorities said yesterday as they announced an indictment against seven men, most of them alleged members of the Pioneer City Boys.

The indictment unsealed yesterday accuses the seven men of selling cocaine and crack beginning in 2002 in a section of Severn known as Pioneer City. The men "tagged" walls, streets and mailboxes with graffiti to warn others against cooperating with police, the indictment says. They committed acts of violence in public and retaliated against rival drug dealers to deter anyone from interfering with their operation, it says.

Each of the suspects is charged with conspiracy to distribute cocaine, which carries a maximum term of life in prison. One of the suspects, Calvin I. Savoy, is also charged in connection with the shooting of the police officer, William Hicks, and two are charged with other firearms offenses.

County police have said that Hicks was shot from behind as he tried to arrest a man who was firing a gun in the air outside Kim's Lounge and the New Star Inn in Severn. Hicks was treated for a gunshot wound to the arm and has returned to duty.

"The indictment is a significant step in ridding our communities of select individuals who account for a large majority of the violent crimes," Police Chief P. Thomas Shanahan said in a statement.

Charged with conspiracy to distribute narcotics were alleged gang members Lowell J. Braswell, 21, of La Plata; Tony M. Horne Jr., 24, of Glen Burnie; Laronte L. Richardson, 19, of Baltimore; Troemaine H. Storey, 27, of Glen Burnie; Paul E. Turner Jr., 30, of Severn; and Savoy, 27, of Glen Burnie. All are in custody except Turner, who is being sought by police.

The seventh man, Jerome O. Waters, 27, of Annapolis, is accused of being one of the gang's sources of crack cocaine.