The Brief Federal agents served court-sealed search warrants at multiple Southern California locations, including a Chino Hills home linked to San Bernardino County Supervisor Curt Hagman. Federal agents on Tuesday served a search warrant at a home linked to San Bernardino County Supervisor Curt Hagman. Officials did not specify why the FBI were at the San Bernardino County Supervisor's home. Hagman represents the county's 4th District, which represents Chino, Chino Hills, Montclair, Ontario and Upland. Authorities have not clarified whether the warrant served at the Beverly Hills mansion is directly connected to the warrants executed across San Bernardino County.