UK acts of Parliament introduced 1831, 1887, 1896, and 1940 to prevent employers misusing wage-payment systems to the detriment of their workers. The legislation made it illegal to pay wages with goods in kind or with tokens for use in shops owned by the employers. The 1940 act prevented employers giving canteen meals in lieu of wages. The 1831 act had no means of enforcement, and even after the 1887 act, responsibility and costs of bringing prosecutions lay with the aggrieved worker.