( formerly) a place of detention for persons convicted of minor offences. (正式用语)拘留那些犯罪情节较轻的人的地方。
The investigation place is a middle city in west China; the sample is the operation conditions of criminal detention of that city's district; 考察地是我国西部某中等城市:样本是该市某区刑事拘留的运行现状;