品德不良的青少年是指那些经常违反社会的道德准则或犯有较严重的道德过错 ,甚至危害社会治安的的青少年。尽管品德不良和违法犯罪是两个不同的概念 ,但两者之间并没有一个绝对的界限 ,前者是后者的“前奏”和“信号”。目前 ,青少年品德不良和违法犯罪已成为国际性问题 ,不仅 Bad-tempered adolescents refer to those adolescents who often violate social norms of morality or commit serious moral mistakes and even endanger social order. Although bad moral character and criminal offenses are two different concepts, there is no absolute boundary between the two. The former is the “precursor” and “signal” of the latter. At present, bad moral character and crimes committed by young people have become an international problem, not only