A 35-year-old Lawrence man has been sentenced to 60 days in jail followed by probation for a sex crime involving an acquaintance’s 13-year-old daughter.

James W. Blackburn was sentenced Tuesday in Douglas County District Court for a May 13 incident at a home in Eudora in which prosecutors alleged he touched the girl inappropriately after a night of drinking alcohol.

He initially was charged with aggravated indecent liberties with a child, but Dist. Atty. Charles Branson’s office dropped it to an “attempted” crime as part of a plea agreement, which put Blackburn in a gray area on the sentencing grid in which a judge can give the defendant probation or prison.

Deputy Dist. Atty. Bob Claus said his office didn’t oppose probation but asked for the 60-day sentence. Judge Paula Martin granted the request.

Blackburn also will have to register as a sex offender and undergo a substance-abuse treatment program and a sex-offender treatment program.

Defense attorney Elbridge Griffy IV said Blackburn was remorseful.

“He knows he messed up,” Griffy said.