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WAUKESHA - Police officers in Butler engaged in what one called a 'frat house' atmosphere that included sharing pornographic images known as 'porn in the morn,' using racially derogatory terms among themselves and officers from other departments, coarse language and one officer routinely exposing himself, as well as one officer being referred for possible criminal charges, according to a 365-page report released Thursday by the Waukesha County Sheriff's Department.

Police Chief Mike Cosgrove, who resigned after 33 years of service while the investigation was ongoing, was part of that culture the report said. He was not charged.

A police officer reported a colleague exposed himself to him, a clerk reported Cosgrove made harassing comments, and one officer had an allegation of misconduct in office against him sustained, the report said.

For more on this story, pick up a copy of Friday's Freeman.