An poster with an enlarged view of the dismissal of the 2001 Los Angeles Police Department consent decree, ending federal oversight of the department prompted by the Rampart corruption scandal, is seen as the mayor, police chief, and police commission board members appear at police headquarters, Thursday, May 16, 2013, in Los Angeles. (AP Photo/Reed Saxon).

A judge has officially ended more than a decade of federal oversight of the Los Angeles Police Department that was triggered by a corruption scandal involving abusive officers.

In two short sentences, U.S. District Judge Gary Allen Feess dismissed the final remnants of a consent decree on Wednesday, releasing the department from a transition agreement put in place in 2009 to ensure reforms that had been made were kept in place.

Mayor Antonio Villaraigosa cheered the formal end to agreement at an afternoon news conference with Police Chief Charlie Beck. Villaraigosa said the department, which was once "an example of how not to police a city, is now a national model."

Tyler Izen, president of the Los Angeles Police Protective League, said the union was pleased the department was free of the federal monitoring.

"Now we can begin looking for efficiencies in LAPD processes while at the same time maintaining the transparency the public deserves," he said. The union represents nearly 10,000 LAPD personnel.

The city was forced into the consent decree in 2001 under the threat of a federal lawsuit. The U.S. government alleged a pattern of civil rights violations committed by police officers that went back decades.

The abuses came to light after the so-called Rampart scandal in which officers in an elite anti-gang unit were found to have beaten and framed suspected gang members.

The decree mandated more than 100 reforms and the appointment of an outside monitor.

It ended in July 2009 and a transition agreement was approved to ensure the reforms continued.

"This isn't a matter of what goes on a piece of paper; this was about changing a culture," said Mark Rosenbaum, chief counsel for the ACLU of Southern California. "The purpose was to make sure they were cemented in."

Reforms included improving training, a better system for monitoring officer performance, increased oversight of the anti-gang unit, and a ban on racial profiling.

During the transition agreement, the civilian Los Angeles Police Commission was responsible for oversight of the reforms.

If Justice Department lawyers were unhappy, the agreement allowed them to take the department back to federal court.

Rosenbaum, who represented community groups in the case, said there were still questions about the department's treatment of homeless people and whether it was doing racial profiling. He said data on who is stopped, questioned or arrested isn't made public.

But Rosenbaum acknowledged that much had changed for the better.

"Twenty years ago, 15 years ago, 10 years ago, no one could have imagined this police department would have been under control and treat the most vulnerable communities with respect," Rosenbaum said. "And by and large, it has occurred."