WEST COVINA (CBSLA.com)  —  Police in West Covina on Sunday arrested a Rialto man for a probation violation before discovering he also allegedly had 28 grams of meth hidden in his buttocks.

Jimmy Ontiveros, 24, was taken into custody for the undisclosed probation violation when the drugs were uncovered.

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Ontiveros was arrested after officers stopped a 2004 Dodge Intrepid in which he was a passenger about 9 a.m. at the intersection of Cameron and California Avenues, according to the San Gabriel Valley Tribune.

While being booked, Ontiveros was found to have a small amount of meth in his sock, West Covina police Lt. Dennis Patton told the newspaper.

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After a more thorough search, nearly 30 grams of the drug was then found between Ontiveros’ buttocks, Patton said.

Ontiveros was booked on suspicion of possession of narcotics for sale, possession of narcotics in a custodial environment (the police station) and for the probation violation, the lieutenant told The Tribune.

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The driver of the vehicle was cited for an unspecified violation and released, the Tribune said.