prison breaking 越狱罪；突破监所罪 

普通法上的犯罪，指在押犯未经许可并且使用暴力离开合法关押的场所的行为。它区别于劫狱罪〔rescue〕，劫狱罪是由第三人由狱外实施的；也区别于脱逃罪〔escape〕，脱逃罪是指在押犯未经许可也没有使用暴力离开合法关押场所的行为。现代制定法渐趋抛弃普通法的上述区别，越狱罪通常指以任何手段逃离合法关押场所的行为。

A prison escape (referred as a bust out, breakout, jailbreak, or prison break) is the act of an inmate leaving prison through unofficial or illegal ways. Normally, when this occurs, an effort is made on the part of authorities to recapture them and return them to their original detainers. Escaping from prison is also a criminal offense in some countries, such as the United States and Canada, and it is highly likely to result in time being added to the inmate's sentence, as well as the inmate being placed under increased security that is most likely a maximum security prison or supermax prison. In some other places like Germany and a number of other countries, it is considered human nature to want to escape from a prison and it is considered as a violation of the right of freedom, so escape is not penalized in itself (in the absence of other factors such as threats of violence, actual violence, or property damage).