Changes to Justices' Clerks (Qualifications of Assistants) 1979
S.I. 1979/570
Made by Justices' Clerks (Qualifications of Assistants) 1999
2 changes. All changes to Justices' Clerks (Qualifications of Assistants) 1979
From legislation.gov.uk's record of changes, the official one: see it there.