criminal in custody; 在押犯 He was taken into custody immediately after the robbery. 抢劫案发生后，他立即被押了起来。
双语例句
1
As one of the most severe, most extensive application on practice criminal compulsory measures, the pretrial custody system appears numerous questions in the criminal judicial practice of our country.
作为最为严厉、适用最为广泛的刑事强制措施之一，未决羁押制度在我国的刑事司法实践中出现了众多问题。
2
Extended custody is a kind of illegal act that seriously infringes upon the just right of criminal suspects and defendants, and it is difficult to solve once and for all in practice.
超期羁押是一种严重侵犯犯罪嫌疑人、被告人合法权利的违法行为，而且在实践中一直难以根治。
3
Chapter 2 puts a research on some theoretic issues of such crime and holds the definition of such crime of releasing the criminal person held incustody without authorization.