Once-prominent local attorney Aaron Biber was sentenced Wednesday to 18 years in prison for raping a 15-year-old boy, according to court records.

Hennepin County District Court Judge Lloyd Zimmerman handed down the sentence-not as severe as the maximum 24 years sought by prosecutors, but more than the state guidelines of 12 to 14 years.

Biber-who used to work at the Minneapolis law firm Gray Plant Mooty-must serve at least 12 years of the sentence in prison. Should he be released at that time, he would face another 10 years of probation.

According to media reports, Zimmerman said in court that aggravating factors-like Biber exposing the boy to alcohol, sexual text messages, and pornography-dictated the longer sentence, adding that it aligned with similar sexual assault cases and would likely stand up to appeals.

The sentencing came after one-and-a-half days of testimony from Biber, his friends and family, the victim, his family, and experts.

Biber, 47, pleaded guilty in July to one of two felony counts that he faced-first-degree criminal sexual assault for sex with a minor over whom he had authority. The second count-solicitation of a child to engage in sexual conduct-was dismissed.

In December, police arrested Biber, who was then treasurer of the Minnesota State Bar Association. According to the criminal complaint filed in Hennepin County District Court around that same time, Biber served alcohol to a 15-year-old boy at his Shorewood home in early October and then anally raped and sodomized him. Within the couple of months after the incident, Biber allegedly sent the boy graphic images and text messages.

In December, the victim and his parents agreed to help police catch Biber by allowing them to monitor text messages and telephone calls between the boy and Biber. The two had arranged to meet at the Eden Prairie Mall on a Friday-and that's where police made the arrest.

Biber-who has children and was reportedly divorced from his wife since his arrest-is a former president of the Hennepin County Bar Association.