JEFFERSON COUNTY, Colo. — A postmaster was arrested Thursday in Elizabeth and is accused of chatting online in a sexual manner with people he thought were 13-year-old girls but were actually law enforcement investigators.

On Thursday, the Jefferson County Sheriff’s Office’s Child Sex Offender Internet Investigations Unit, known as Cheezo, arrested 44-year-old Chad Miller, who’s a postmaster for the U.S. Postal Service.

An investigation began in August 2021 when Miller started communicating online with whom he believed was a 13-year-old girl, but was a member of the Cheezo Unit, the sheriff’s office said. Miller said he wanted to have sex with the girl and then stopped communicating.

Between March 9 and 30, Miller again started to talk with an investigator from the Cheezo Unit who was posing as a 13-year-old girl, the sheriff’s office said. Miller said he was a postmaster as he continued to talk sexually and described what he wanted to do with the girl.

Investigators with the sheriff’s office found Miller at a post office in Elizabeth and arrested him on two counts of internet sexual exploitation of a child and sexual exploitation of a child, which are both felony charges.

In a statement, the U.S. Postal Service said Miller had worked for the USPS since Nov. 30, 2014.

“The Postal Service is aware and takes this matter very seriously. At this time, because it involves a pending criminal and personnel matter, we cannot comment further,” the USPS said.

No other details are available as of Friday morning.