detainer

de·tain·er   (dĭ-tā'nər)    n.   A withholding from the rightful owner of property that has lawfully come into the possession of the current holder. The detention of a person, especially in custody. A writ authorizing the further detention of a person in custody, pending further action.

Main Entry: de·tain·er
Pronunciation: di-'tA-n&r
Function: noun
Etymology: Anglo-French detenoure, from detenir to restrain, detain, from Old French, from Latin detinere
1 : the act of keeping something in one's possession; specifically : UNLAWFUL DETAINER
2 : detention in custody
3 : a notification sent by a prosecutor, judge, or other official advising a prison official that a prisoner is wanted to answer criminal charges and requesting continued detention of the prisoner or notification of the prisoner's impending release —compare EXTRADITION