OKLAHOMA CITY - Oklahoma City police are implementing new protocol for active shooter situations.
Instead of classroom work, the entire force is getting scenario-based training.
1999’s Columbine shooting massacre changed the way law enforcement thinks.
"Back in Columbine, they did exactly what they were supposed to do back then, which is set up a perimeter and wait for the tactical unit to respond," said Lt. Tommy Joyce. "Now, we know that's not what you're supposed to do."
"If we want to protect life, we have to go in there immediately," said Capt. Paco Balderrama. "We know from the statistics that these things last about an average of about 12 minutes. We don't have 35-45 minutes to call the big guns in.”
With every mass shooting situation, officers learn something new.
"Enemies are always adapting to our tactics," Joyce said. "So, we always want to be ahead of the curve and adapting our own tactics."
Currently, all Oklahoma City police officers are upping their training with simunition or non-lethal weapons.
"The officers are going to be stepping into these situations knowing they could potentially be hit with a simunition round, like a paint ball round,” Joyce said.
That makes training scenarios feel real and adds pressure.
"There's so many things to consider," Balderrama said. "Who is in the building? Is it good guys? Is it bad guys? Who are the victims?"
NewsChannel 4’s Kristen Shanahan was put to the test.
The scenario: a man with a gun was in a business, but she did not know which room he was in.
Shanahan was supposed to call the shots but, she was so nervous, her partner took the lead.
Shanahan said everything happened so fast that she did not start shooting until her partner did.
If it were not for him, she probably would have been shot.
News Channel 4 was only able to go through and film one scenario in order to keep police tactics a secret.
This is one of the first times, in years, the entire police department has gotten hands on training with simunition guns and mock scenarios.
The department said that is because it takes man power from the streets, and it is expensive.
However, the force plans to do this type of training more often.