The Probation (Scotland) Act 1931 formally created the Scottish probation services. These were co-terminous with local council boundaries rather than Sheriffdoms (that is, local court areas).

Source: McCulloch, T and McNeill, F. (2010) 'Criminal justice social work in Scotland', Revisita de Asistenja Sociala, anul IX nr 3/2010, 21 - 38.