Looking at the referenced source which links to their methodology, there's about 75k child sex offenders. 9/10 child sex offenders that are caught aren't on the

Looking at the referenced source which links to their methodology, there's about 75k child sex offenders. 9/10 child sex offenders that are caught aren't on the register. So perhaps the estimate is actually below the real value. https://nationalcrimeagency.gov.uk/nsa-child-sexual-abuse https://nationalcrimeagency.gov.uk/nsa-child-sexual-abuse