WICHITA, Kan. — Court records say an investigation into a former Kansas police sergeant who’s charged with sex crimes began when his wife reported concerns about him texting teenage girls.

The Wichita Eagle (http://bit.ly/2sjnUMV ) reports that the affidavit for Valley Center police Sgt. Thomas Delgado was released Monday. The 49-year-old is facing charges of sexual exploitation of a child, sexual battery, attempted sexual battery, official misconduct and three counts of harassment by telecommunications device.

The affidavit says his wife contacted a sheriff’s lieutenant in November, the same month she filed for divorce. She reported that Delgado was “constantly” texting 14-to 17-year-old girls. She also said she “believes he gets their information from responding to 911 calls involving girls.”

Delgado resigned after his December arrest. He was previously a Sedgwick County sheriff’s patrol deputy.