A preliminary hearing has been postponed for the man arrested last week on multiple charges that he had improper contact with a 15-year-old Mt. Lebanon High School student.

The hearing had been scheduled for today. Instead, Christopher M. Childs II, 20, of Mt. Lebanon, will appear before District Judge Blaise Larotonda at 1:30 p.m. Wednesday.

Charges against Mr. Childs include statutory sexual assault, indecent assault of a person less than 16 years old, indecent exposure and corruption of minors.

According to the criminal complaint, Mr. Childs met the boy in November when he started volunteering with the Mt. Lebanon High School men's track team.

They became friends and in June, began a consensual sexual relationship, the criminal complaint said. None of the sexual encounters took place on district property.

Mr. Childs, who volunteered during the 2011 season, is no longer involved with the team, district officials said last week.

District guidelines require athletic coaches and volunteers to submit state and federal criminal clearances before working with students. Mr. Childs' clearances showed no prior violations, district officials said.

The school district informed Mt. Lebanon parents of Mr. Childs' arrest and is asking parents or students who have any information or concerns about the situation to contact Mt. Lebanon police at 412-531-5300.