SANTA BARBARA, Calif. (KEYT) – Santa Barbara County Sheriff's Office detectives arrested a custody sergeant after a criminal investigation for significant timecard fraud on Thursday. The 34-year-old served in a supervisory role as a custody sergeant and his responsibilities included reviewing and approving overtime, according to the SBCSO. SBCSO did not identify other suspects in the case nor other fraud activity by other employees. The investigation remains ongoing and a parallel administrative investigation is underway, according to the SBCSO. The 34-year-old was booked at the Ventura County Jail and is being held on $150,000 bail, according to the SBCSO.