detainer

plural detainers

1. lawThe right to keep a person, or a person's goods or property, against his will; a type of custody.

   On Monday, the federal Immigration and Customs Enforcement agency placed a similar detainer on Melvin Jovel, 18, who on Sunday was the sixth person to be arrested in the case.

   2007 August 21, Kareem Fahim, “Presidential Candidate Blames Killings on Newark Sanctuary Policy”, in The New York Times, archived from the original on 30 Aug 2019

   2 more examples

   Through January, immigration authorities placed detainers on an additional 1,468 people — giving federal agents the right to hold suspects who are released from jail. […] Scott Weber, the field office director for the enforcement office in Newark, said that in roughly a third of the cases, his agency would file a detainer or immigration charges; another third involved individuals who could be deported after their court cases; and the rest might be United States citizens or legal residents.

   2008 March 23, Kareem Fahim, “Immigration Referrals by Police Draw Scrutiny”, in The New York Times, archived from the original on 10 Feb 2018

   Officer Torres’s lawyer, Paul S. Missan, said on Saturday that he had been told by a prison official in Pennsylvania that a detainer was lodged against his client, meaning he was likely to face federal charges.

   2008 April 13, Christine Hauser, “U.S. Officials Are Expected to Charge Police Officer”, in The New York Times, archived from the original on 06 Jan 2018

plural detainers

1. One who detains.

   […] he chatted gaily with his fair detainer, showing no inclination to escape from the bondage in which she sought to retain him.

   1840, Ellen Pickering, Who shall be heir?, volume 1, page 146