Im watching Louis Theroux program and over in the USA they have an app to search for sex offenders in their area.
Why do the UK not follow their lead!! Very scary especially if you have children 
I have a sex offender in my street and didnt find out he had been charged with sex offences for 2 years.
This man lives over 2 hedges from me and walks about the street thinking he owns it. Has a real bad attitude. grrr makes my blood boil