COLVILLE, Wash. -

Former Colville Police Officer Rex Newport spent 15 years putting countless criminals in prison. On Tuesday, Newport found out he would be heading off to prison for 29 months himself.

Newport pleaded guilty in February to multiple felony and misdemeanor charges, including unlawful imprisonment with sexual motivation. The court identified Newport's behavior as reckless and the arrogance he displayed was truly disturbing.

"Your honor, I messed up," Newport said, addressing a packed Stevens County courtroom Tuesday morning. "I'm absolutely ashamed of myself."

Last year a woman came forward saying she was drunk when Newport came into her home, handcuffed and sexually assaulted her while he was on duty. Four other women later said Newport made sexual advances towards them as well. In February Newport accepted a plea deal.

Newport's lawyer argued he's a good man, who made terrible mistakes, but the court argued that Newport, "identified and isolated not just these women and others and used the authority of your office to coerce them into sexual activity for no reason but to satisfy your desires," adding that his actions brought shame to himself and black eyes to other Colville police officers. "With the multiple victims, multiple incidents, I would say the only appropriate decision would be the maximum sentence."

Washington Assistant Attorney General John Hillman said he was pleased with Newport's sentence.

"He's also now a convicted felon, a sex offender who will have to register when he is released from prison, he will no longer be able to carry a firearm or work as a police officer in his state," Hillman said.

After years of putting people in handcuffs, Newport was the one to be handcuffed and taken away to prison. Like all Department of Corrections inmates, Newport will be transported to the prison in Shelton, where he'll be assessed and DOC will determine which prison to send him to. They'll take several things into consideration including the length of sentence, nature of crime and his background.

After Newport gets out of prison, he will have to register as a sex offender for 10 years.