A Utah man who ran the clock at Brighton High School sporting events is charged with giving beer to students in exchange for pictures of their genitals, The Salt Lake Tribune reported.

Brian Scott Hansen, 49, was charged Tuesday after four male students, 17 and 18, told police he allegedly had asked for the nude photos between January 2007 and May of this year.

Investigators found pictures of male genitals with students’ names written on the back in Hansen’s bedroom, the story reported. Hansen admitted to police that he had made the trades, The Tribune reported.

Hansen worked at Brighton High from September 2006 through April of this year. He faces four counts of solicitation to commit sexual exploitation of a minor and one count of supplying alcohol to a minor, The Tribune reported.

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