Complex sentence: In England and Wales the office's civil (civil judgment) enforcement powers exist but are not exercised by convention and the office was that of sheriff until 1 April 1974, except in the City of London which has two sheriffs of the City of London.
Split into simpler sentences: In England and Wales the office's civil (civil judgment) enforcement powers exist but are not exercised by convention. The office was termed that of sheriff until 1 April 1974, except in the City of London, which has two sheriffs of the City of London.