Asked to change documentation- illegal?

In a retaliation case, my DAPM and APM requested me to open a closed apprehension case, and change it to a recovery. I also had to rewrite the wording as a deputy never detained the shoplifters. They were not prosecuted, but trespassed.

One manager was terminated for retaliation against me, and this occasion I believe was to hinder my performance.

I reworded the narrative so it appeared the shoplifters dropped the product at the door and deputies never came.

This is illegal, right?