Green’s Dictionary of Slang

fastner n.

also fastener

a warrant (of arrest).

[UK]B.E. Dict. Canting Crew n.p.: Fastner c. a Warrant.
[UK]A. Smith Lives of Most Notorious Highway-men, etc. (1926) 205: Fastner, a warrant.
[UK]New Canting Dict. [as cit. c.1698].
[UK]Bailey Universal Etym. Eng. Dict. [as cit. c.1698].
[UK]B.M. Carew Life and Adventures n.p.: fastener a warrant.
[UK]Grose Classical Dict. of the Vulgar Tongue.
[UK]G. Andrewes Dict. Sl. and Cant.
[UK]Lex. Balatronicum.
[UK]Flash Dict.
[UK]‘Jon Bee’ Dict. of the Turf, the Ring, the Chase, etc.
[UK]G. Kent Modern Flash Dict.
[US]‘Ned Buntline’ Mysteries and Miseries of N.Y. I 114: ‘Fastner.’ A warrant.
[UK]Flash Dict. in Sinks of London Laid Open.
[UK]Duncombe New and Improved Flash Dict.
[US]Matsell Vocabulum.
[Aus]Crowe Aus. Sl. Dict. 27: Fastener, a warrant.
[US]A.J. Pollock Und. Speaks.