rights website shows inmates in khaki uniforms at Rahova prison. Poland While prison uniforms are used for both convicts and detainees, they are not compulsory. The policies are similar to those in Germany. Some prisons do not use them at all, some prisons use them only for some inmates (depending on conviction of crime or behavior), and some prisons make uniforms compulsory. Minimum security prisons are encouraged to not use prison uniforms and maximum security prisons are encouraged to use them, however this all varies as some inmates incarcerated for small crimes do wear uniforms and some inmates incarcerated for serious crimes do not wear them. Uniforms are almost always and even possibly always worn on top of civilian clothes. Usually on all security levels the uniform is a green button down jacket worn on top of civilian clothes with green jacket pants but some inmates in maximum security prisons and non-serious criminals who are badly misbehaved sometimes wear orange or red instead of green. Germany During the Nazi period of Germany, interned people in the concentration camp system were often made to wear prisoner's uniforms. In today's Germany, inmates may wear regular civilian clothing in some prisons. In other prisons clothing issued by the prison is compulsory. If a prisoner cannot afford to have his own clothing cleaned and/or replaced, they may be issued with clothing. There are also facilities with no prison uniforms. The prison uniforms are officially referred to as Anstaltskleidung (literally: “institutional clothing”), not as “uniforms”. They are usually similar to the type of clothing generally worn for manual work, and not necessarily recognizable as prison clothing. When prisoners are allowed to temporarily leave prison, they may generally wear private clothing to avoid being recognized as prisoners. United Kingdom 19th century In the United Kingdom, prison uniforms formerly consisted of a white jacket, trousers and pillbox hat, all stamped with the broad arrow to denote crown property. The idea of covering the uniforms of Penal Servitude prisoners with the broad arrow was first introduced by Sir Edmund Du Cane in the 1870s after his appointment as Chairman of Convict Directors and Surveyor-General of Prisons. Du Cane considered the broad arrow to be a hindrance to escape and also a mark of shame. It was certainly unpopular with the convicts. “All over the whole clothing were hideous black impressions of the Broad Arrow”, wrote one prisoner. Another