Abuse of power

On the 26 th Feb I had to go to the Municipality in Brackenfell. I use a 125cc bike to go there. I parked on the lawn in front of thee offices, away from the side walk. When I came out there was a pink slip om my left mirror. I removed it but saw that there was nothing written on it. I then walked across the road to the Law Enforcement office after the security told me that it was one of their \officers"who put the slip there. When I approached two of them outside I asked if they can tell me who the responsible person was"