As a result of the incident an internal investigation was opened.
No doubt the cops that responded to the call had Middleton's back. Look at this document.
At first Mrs. Middleton was very cooperative with the investigation. She even provided details about previous instance of his physical abuse.
But as many LRPD cop wives and girlfriends/baby momma's have done in the past, they stop cooperating or are unwilling to assist in the prosecution of the abuser because if convicted, these abusive cops would loose their jobs and the child support they would receive would be much less than if they remained on the job as a cop.
Notes in the internal investigation file indicate that Mrs. Middleton would not cooperate with the Prosecuting Attorney in the prosecution of her husband.
After the completion of the internal investigation, Middleton only received a 24 hour suspension and mandatory anger management classes.
Cops like Middleton is one of the reasons citizens of Little Rock have little trust in the Little Rock Police Department.