More than 80% of people aged 16-25 with autism or Asperger's in Wirral have been victims of so-called mate crime, a report has found.
Wirral Autistic Society said the number young people who had suffered from mate crime was "staggeringly high".
Victims of this type of crime - by people who claim to be friends - suffer verbal and physical abuse and theft.
The survey, carried out earlier this year, collated 141 responses, which were all submitted anonymously.