Alicia Brown alleges an erroneous warrant led to her arrest and questions whether her estranged husband received preferential treatment because of his relationship with the sheriff. The legal dispute surrounding Atlanta radio personality Big Tigger and his estranged wife is taking another turn. Alicia Brown has filed a federal lawsuit against Fulton County Sheriff Patrick Labat and the Fulton County Sheriff’s Office, alleging that an erroneous warrant led to her arrest during a traffic stop on Interstate 85. Brown says the Fulton County warrant accused her of interfering with child custody, even though a judge had granted her custody of …