A recently hired school resource officer for the Sharon Hill Police Department has been charged with raping a 15-year-old girl last December after giving her alcohol, investigators said Friday.

Tyler Humphreys, 21, has also been charged with statutory sexual assault, aggravated indecent assault of someone younger than 16, involuntary deviate sexual intercourse with a child, and related offenses for other sexual assaults, one on a 19-year-old woman last year and another on a 9-year-old boy that occurred when Humphreys was 12.

The assaults all occurred in Chester County, where Humphreys, of Malvern, lives. He was released after posting $275,000 bail. There was no indication Friday that he had hired an attorney.