Swenson investigations specializes in surveillance, hidden assets, missing persons, fraud investigation, background checks, marital and domestic issues, political graft, and corruption. Communities served are Stanislaus County, Ceres, Denair, Diablo Grande, Empire, Grayson, Hickman, Hughson, Keyes, Knights Ferry, La Grange, Modesto, Newman, Oakdale, Patterson, Riverbank, Salida, Turlock, Valley Home, Waterford , Westley, Mariposa County, Mariposa, Tuolumne County, and Sonora