https://www.theguardian.com/uk-news/2019/oct/03/sister-murdered-girl-nina-alice-gross-brexit-police

Extract

“We are talking about a very small number of people who have committed violent and sexual offences,” Gross says. “If we leave the EU without a deal people will be put at risk. We need some sort of guarantee that we will continue to be part of the system we’re part of at the moment. We need a proactive rather than a reactive system.”

The databases the UK currently has access to include ECRIS – the European Criminal Record Information System – and Europol allows UK police and immigration officials access to information about violent killers and sex offenders, and vice versa. If the UK leaves the EU without a deal, access will end. But amid discussion of food shortages and medical hold-ups, the security implications of that fact have been lower on the agenda.

Gross fears that women and girls will be disproportionately affected if the monitoring system for this small but highly dangerous group of offenders is abandoned.

She and her family are at pains to emphasise that they support freedom of movement and are profoundly dismayed that Alice’s case has been exploited for what they view as xenophobic purposes.