BOSTON (AP) _ Three more indictments have been handed up in an investigation into the theft of civil service tests for metropolitan area police officers.

Nine officers or former officers already have been convicted in the scandal that began in 1986 when a Metropolitan District Commission police captain pleaded guilty to being the mastermind of the theft and distribution operation.

The latest indictments include the first woman promoted to police lieutenant in Newton.

Officials say the careers of more than 100 officers may have been stalled as they continue investigation of the scam.

The three officers surrendered Wednesday and were released on unsecured bonds.

Indicted Tuesday by a federal grand jury, according to U.S. Attorney Frank McNamara, were former Newton Lt. Marilyn T. Connell, Revere Patrolman Robert E. Nunez and Metropolitan Police Lt. Richard A. Nazzaro.

Ms. Connell and Nazzaro pleaded innocent when arraigned in U.S. District Court. Nunez will be arraigned Monday.

They face varying charges in connection with purchase or possession of advance copies of the tests. They face maximum penalties on each charge of five years in prison and $250,000 in fines.

Former Metropolitan Police Capt. Gerald W. Clemente pleaded guilty in 1986 to racketeering in connection with the theft and distribution of civil service entrance and promotional exams.

He is serving a sentence of 30 to 40 years in state prison for a Medford bank robbery and faces an additional 15 years in prison in the civil service examinations case.