COLORADO SPRINGS, Colo. -

A former Colorado Springs Police officer pleaded not guilty on Tuesday in the child sex abuse charges against him.

A motion was filed to remove the prosecutor from the case over recorded jail house phone calls. The judge ruled prosecutors may stay on the case.

A trial is set for March.

Joshua Carrier faces 196 counts related to child sex abuse and child pornography against 21 victims.

The victims were boys who were members of the wrestling team at Horace Mann Middle School where Carrier volunteered as an assistant coach. Prosecutor Amy Fitch said in September that additional victims have been identified from a video, and more charges will be filed.

Carrier, who was fired from the police department after his arrest earlier this year, was a resource officer assigned to the school. He also claimed to be an emergency medical technician, but testimony in September from a police detective revealed that Carrier was not a licensed EMT.

During witness cross-examinations, defense attorney Christopher Decker asked how his client could be guilty when most of the alleged victims and their parents did not bring accusations against Carrier until learning of his arrest. Prosecutors said the alleged crimes happened during the 2009-2010 and 2010-2011 school years.