AURORA — Despite objections by Arapahoe County District Attorney George Brauchler, the Aurora City Council approved an outside review of the city’s fire and police response during the July 20 theater massacre.

The council voted unanimously Monday night to hire TriData to preform the “after-action” analysis — costing nearly $250,000 — which will document the shooting where 12 people were killed and 58 others injured.

“It’s important to create a historical record of what occurred,” said police Chief Dan Oats, who spoke in favor of the report.

In February, the council halted its decision to move forward on the review after Brauchler sent a letter claiming the independent probe could hinder the prosecution of James Holmes, the alleged shooter.

“First, because TriData would be acting as an agent of the city, the notes, reports, recordings or other memorializations of witness interviews would be required to be provided to the defense lawyers as part of the criminal discovery process,” the letter said.

Oats said he had spoken to Brauchler following the letter and believed the “after-action” would not hinder prosecution.

Aurora Mayor Steve Hogan said many would benefit from the completed report.

“First responders have not healed because their story hasn’t been told yet,” he said. “I am happy to see this is going forward.”