HOBOKEN--When asked by detectives if he had anything in his pants, a Jersey City man replied "yes."

He then allegedly pulled a large package of drugs from his buttocks.

James Fields, 26, hid 10 bags of heroin, 49 packages of crack cocaine and one suspected bag of cocaine in his buttocks, Hoboken police said. Detectives had initially arrested Fields at 10:11 p.m. on Friday for trespassing on Hoboken Housing Authority Property, police said. While sitting in the back of a cop car, Fields allegedly shifted suspiciously in his seat. He continued to squirm at headquarters, so detectives asked him if he had anything in his pants, police said.

Fields confirmed that he did, and then pulled a large package of drugs from his buttocks, police said.

Detectives later found an additional 45 grams of crack cocaine, two packages of heroin and baggies typically used for drugs during a consent search of a city residence, police said. Fields had allegedly been hiding the drugs there. Detectives also seized $188 in drug proceeds.

Fields' drugs were just part of a large haul seized by Hoboken police on Friday and early Saturday, police said. Fields and two unrelated arrests led to the confiscation of $3,700 worth of illegal drugs, police said.

Fields faces criminal trespassing charges, as well as a slew of drug possession with intent to distribute, possession within 1000 feet of a school zone and possession within 500 feet of public housing charges. He is being held in the Hudson County jail in lieu of $75,000 bail.

Kathryn Brenzel may be reached at kbrenzel@njadvancemedia.com. Follow her on Twitter @katiebrenzel. Find NJ.com on Facebook