workhouse. From the later 17th century private institutions for the insane, called the beterhuis, developed to meet this need. In Hamburg, a different pattern occurred with the spinhaus in 1669, to which only infamous criminals were admitted. This was paid by the public treasury and the pattern spread in eighteenth-century Germany. In France the use of galley servitude was most common until galleys were abolished in 1748. After this the condemned were put to work in naval arsenals doing heavy work. Confinement originated from the hôpitaux généraux which were mostly asylums, though in Paris they included many convicts, and persisted up till the revolution. The use of capital punishment and judicial torture declined during the eighteenth century and imprisonment came to dominate the system, although reform movements started almost immediately. Many countries were committed to the goal as a financially self-sustaining institution and the organization was often subcontracted to entrepreneurs, though this created its own tensions and abuse. By the mid nineteenth century several countries initiated experiments in allowing the prisoners to choose the trades in which they were to be apprenticed. The growing amount of recidivism in the latter half of the nineteenth century led a number of criminologists to argue that "imprisonment did not, and could not fulfill its original ideal of treatment aimed at reintegrating the offender into the community". Belgium led the way in introducing the suspended sentence for first-time offenders in 1888, followed by France in 1891 and most other countries in the next few years. Parole had been introduced on an experimental basis in France in the 1830s, with laws for juveniles introduced in 1850, and Portugal began to use it for adult criminals from 1861. The parole system introduced in France in 1885 made use of a strong private patronage network. Parole was approved throughout Europe at the International Prison Congress of 1910. As a result of these reforms the prison populations of many European countries halved in the first half of the twentieth century. Exceptions to this trend included France and Italy between the world wars, when there was a huge increase in the use of imprisonment. The National Socialist state in Germany used it as an important tool to rid itself of its enemies as crime rates rocketed as a consequence of new categories of criminal behavior. Russia, which had only started to reform its penal and judicial system in 1860