In England they maintain a List 99 — a secret register of men and women who are barred from working with children by the Department of Education and Skills (DfES).
More than 80 years old, it is maintained by the Children's Safeguards Unit at the department and contains the names, aliases, dates of birth and National Insurance numbers of all those forbidden to work with children in schools, social work and voluntary settings.
There are currently 4045 names on List 99, the vast majority of which are barred indefinitely from working in schools.
The history of Sex Offenders Law can be found here.
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