Changes made by Justices' Clerks (Qualifications of Assistants) 1999
S.I. 1999/2814
Made to Justices' Clerks (Qualifications of Assistants) 1979
2 changes. All changes made by Justices' Clerks (Qualifications of Assistants) 1999
From legislation.gov.uk's record of changes, the official one: see it there.