A narcotics officer with the Henderson County Sheriff's office is now under investigation for prescription fraud. The investigator facing charges is Brian Nutt. The sheriff's department said they would not elaborate on the investigation Monday. The Texas Rangers are handling this case. The ranger assigned to the investigation was not available for comment. The sheriff's department does tell us that Nutt had a history of chronic back pain. They said he was a great employee. Right now, he is only under investigation.