Local education authorities do not add names to List 99. Decisions on whether to place individuals on List 99 are made by the Secretary of State acting on advice from Sir Roger Singleton, who chairs a panel of independent experts. For certain serious offences against children barring is automatic. Referrals are received from a number of different sources including the police, local education authorities, schools and social services.
Some 1,679 individuals have been placed on List 99 in the past five years (18 July 2001 to 17 July 2006). It is not possible to break this down by local education authority due to the way the statistics are currently recorded.