The number of crimes committed in China has increased slowly over the years. Most crimes were related to theft and fraud, which may be seen as the outcome of growing social inequality, a side effect of ongoing economic development. Nevertheless, apart from economic crimes, China seems to be a comparably safe place. As of 2013, none of the 50 most dangerous cities in the world, a ranking based on a city’s murder rate, were located in China.
A unique feature of the Chinese penitentiary system was the re-education through labor, a system of special administrative detentions. Sentences under re-education through labor were issued as a form of administrative punishment rather than according to criminal law. It has been much criticized for the physical abuse practiced in its facilities. Also, critics claim that many detainees are held for political or religious reasons. The practice was officially abolished by the end of 2013, though a schedule to dissolve it is yet to be issued. The number of detainees held in re-education-through-labor camps reached a peak in 1960. As of 2010, around 310,000 people were still incarcerated in labor camps throughout China.