HOUSTON, Texas (KTRK) -- Hours after a former Houston police officer was taken into federal custody on charges related to the U.S. Capitol riots, authorities announced they're reviewing arrests he made during his career. "We are also auditing arrests made by this former officer to ensure there are no irregularities, to include the review of his body worn camera footage related to his arrests," Houston Police Chief Art Acevedo said in a statement mentioning the department's joint investigation with the FBI into Tam Pham, an 18-year HPD veteran. Pham, 48, turned himself in to authorities Wednesday morning and was awaiting word on an initial court appearance, defense attorney Nicole Deborde told ABC13.