While senior police officers publicly express confidence that they will work with the tools they are given and find solutions to the post-Brexit landscape, some are privately glum about the implications even if there is a deal.
There is hope that UK law enforcement will retain access to some database and information sharing. But there is an expectation that information sharing with key European partners will be slower, more complicated and cumbersome — and could affect public safety.
Even with a deal, UK law enforcement will lose the use of tools such as the European arrest warrant, which was introduced to speed up extraditions. Its notable successes include one of the July 21 2005 would-be bombers being swiftly brought back from Italy to face justice