LOS ANGELES –  Three teenage cadets who aspired to become police officers eroded their chances Wednesday when it was learned they were the culprits responsible for taking police cars for a joy ride and leading officers on multiple pursuits.

LET covered the incident that involved two stolen police units, two vehicle pursuits, three collisions, and three suspects arrested.

LAPD Chief Charlie Beck confirmed Thursday the suspects that led police on wild pursuits ending in crashes were involved in a department program, reported Fox News.

The trio — two boys and a girl ages 15, 16 and 17 — “gamed the system” and used a vacationing sergeant’s name to sign out Tasers and radios and drive the cars right out of a station-house parking lot, Beck said. Police are investigating whether the teens impersonated officers and stopped motorists.

After the pursuits and subsequent collisions, a third police car was later recovered around the corner from a police station.

Beck said he had ordered a thorough review of the department’s cadet program and policies for managing inventory.

“We are going to take this apart top to bottom,” Beck said at a news conference. “We’re going to see what we can do better and we’re going to do it.”

The three were part of a program for teen volunteers who work in police stations and go through an academy to learn about the criminal justice system.

Authorities are still trying to figure out exactly when the cars were taken, but Beck said investigators were looking into the possibility that at least one of the vehicles had been missing since May 28.

Police first grew suspicious when a sergeant who was conducting a routine inventory noticed a patrol vehicle was unaccounted for. Investigators later reviewed surveillance video that showed a young woman with the vehicle at a gas pump, he said.

An officer who was patrolling in South Los Angeles on Wednesday saw two of the stolen police vehicles driving together and tried to pull them over. The teens behind the wheel refused to stop and led police on pursuits that ended with two separate crashes.

A woman suffered a minor injury at the end of one of the pursuits, said Josh Rubenstein, a police spokesman. She was “an innocent bystander in a separate vehicle,” he said.

The teens were arrested on suspicion of vehicle theft and other charges. One was wearing a bullet proof vest that had been taken from a police station, the chief said.

Beck said there was no indication any actual police officers were involved in the thefts.