Senior Cpl. David Aguilar was involved in a wreck at Custer Road and Plano Parkway at about 1 a.m., police said.
Plano officers arrested Aguilar at Parkhaven Drive and Independence Parkway a few minutes later.
He has been placed on administrative leave pending an investigation, the Dallas Police Department said.
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Aguilar is a 12-year veteran of the department who was assigned to the Northeast Patrol Division.