CHICAGO, Illinois - January 14, 2010 - A police officer who was assigned to Kankakee Junior High School is accused of using a Taser on several students during a demonstration.

Kankakee police said the officer used the weapon on at least three boys who volunteered to get shocked during a classroom demonstration.

"A cop came in and then he pulled out his Taser, and was like, I'm giving out free runs for the Taser to try it out,” 12-year-old Miles Maiden told ABC 7. “And then everybody was like I want to try it and I said I'll try it in my finger and he was like, let me get you in your thigh.”

One mother, who asked to remain anonymous because she didn't want her son to suffer a backlash from the school district, said her 12-year-old son witnessed the incident and that it occurred in a special needs classroom for learning and behaviorally challenged children.

"All the children in the class have some sort of learning or behavior disorder," the concerned parent said.  "My son has Traumatic Brain Injury, if that gives you an example of what the makeup of the kids are in that class."

The Kankakee school district has not confirmed this information.

She said her son told her that the first boy screamed and said, "Why did you do that?"

The officer responded: "You volunteered."

The second boy fell down over a chair and the third boy laughed.

"Now my son is scared of police officers."

 A week earlier, the off-duty officer reportedly tasered a few students in the finger.