A former Annapolis mayoral candidate and alderman was ordered Monday to spend next weekend in jail for groping the crotch of a drunken Naval Academy midshipman whom he was sponsoring.

Anne Arundel County Circuit Judge Paul F. Harris Jr. said he probably would not have jailed Samuel E. Shropshire, but Shropshire's words to a pre-sentence investigator changed that.

Despite Shropshire's text-messaged apology to the midshipman shortly after the incident and subsequent admission in a telephone call, Shropshire told the investigator that his 21-year-old accuser was "lying through his teeth," the judge said.

"That's absolute arrogance on the part of Mr. Shropshire," Harris said. He later added, "I'm still not sure he has any remorse."

He said Shropshire was "less than honest" in blaming the midshipman by saying the young man came on to him when the sponsor and student were intoxicated after an evening of drinking on May 14.

Shropshire, 62, said the events of that night were something "that I will regret for the rest of my life."

Tearfully turning to the midshipman, he said, "I am deeply regretful for what you've gone through. I am deeply sorry."

Defense lawyer Gill Cochran said Shropshire has been attending Alcoholics Anonymous and has been sober since he was charged.

Harris sentenced him to one year in jail, suspending all but the weekend and adding two years of supervised probation. Cochran had asked for probation before judgment, and Harris agreed to a future reconsideration that "may ultimately result" in that.

Shropshire was convicted in December of second-degree assault and fourth-degree sex offense for twice grabbing the midshipman's genitals while driving him back to the Naval Academy. The midshipman testified that he swore at him, and Shropshire apologized. Though married to a woman, Shropshire is gay.

Saying that until that night he viewed Shropshire as a "trusted friend" and "father figure," the midshipman told Harris that Shropshire lied during the trial, wrongly claimed he is gay and tried to ruin his Navy career.

The Baltimore Sun is not naming the midshipman because of the nature of the crime.

"Not only did I feel wronged, but I felt that I would be putting my sponsor brothers in danger of a repeat occurrence of what I experienced," he told Harris.

Robert A. Hill, an assistant prosecutor in Montgomery County handling the case, sought jail time because of the "predatory nature" of the crime. Shropshire let the midshipman continue to drink - he had 10 drinks total - when he could have taken him home, and Shropshire drove after drinking.

Hill was brought in because two aldermen, one a mayoral contender, worked in the Anne Arundel County State's Attorney's Office.

Shropshire was a one-term alderman when he ran in the 2009 Democratic primary for mayor. He received nine votes.

For more than a decade, Shropshire had been in the academy's sponsor program, which links midshipmen with local families. Student participation is voluntary.

The academy ended Shropshire's participation when the criminal allegations surfaced.

Since then, the academy has made changes in the program.

"We have since increased the screening and tracking of sponsors and are doing more to educate midshipmen in what they can do if they encounter any problems," said Deborah Goode, a spokeswoman for the academy.