By JOHN COLES A MUM was treated “like a criminal” — for raising the alarm about a freed paedophile. Melanie Singer, 24, posted a leaflet to 250 homes after twisted Tony Adams was let out early from prison. But Adams complained of harassment — and Melanie ended up being arrested. She was fingerprinted, photographed and had DNA swabs taken. And she was later given a formal caution which will hang over her for five years. Mum-of-two Melanie, an assistant at an infants’ school, said: “The system stinks. People have every right to know if someone like this is living in...