The Stanislaus County Sheriff’s Department took a custodial deputy into custody Monday afternoon on allegations he had a sexual relationship with an inmate.

Johnathan McClure, 45, was arrested Monday afternoon by detectives with the sheriff department’s Major Crimes Unit. The arrest came 10 days after the unit launched an investigation into McClure.

One the morning of Aug. 12, sheriff’s officials were made aware of a “possible inappropriate relationship” between McClure and a female inmate who was in custody in Stanislaus County, said Lt. Tom Letras.

Both criminal and internal investigations were started that day. A search warrant was served at McClure’s Modesto home on the afternoon of Aug. 12, with evidence seized Letras said. By late afternoon of that day, McClure had been placed on paid administrative leave and his access to department facilities was revoked.

The Stanislaus County District Attorney’s Office has been working with MCU detectives on the criminal investigation.

McClure was arrested on one count of engaging in sexual activity with a consenting adult who is confined in a detention facility. He posted a $50,000 bail Monday night and is currently out of custody. He remains on paid administrative leave.

McClure has been with the sheriff’s department for 22 years.
Both the criminal and internal administrative investigations are ongoing.
Anyone with information regarding this case is encouraged to contact detective M. Wyatt at 209-525-7091.