The head of the Police Service of Northern Ireland has said a no-deal Brexit will create an opportunity for organised crime gangs.
Chief Constable George Hamilton said there will be implications from Brexit but a no-deal will be "more challenging".
Speaking on RTÉ's Marian Finucane programme, Mr Hamilton said that he is "pretty confident" policing will stand ready for that challenge.
He said in the event of a No-deal Brexit there will need to be an increase in resources, as there is the potential for organised crime groups to exploit the differences between the 2 jurisdictions in terms of excise and tarrifs.
Mr Hamilton said he hopes that the next British prime minister can negotiate a Brexit deal that will be acceptable to both the UK and the European Union.
He said he hopes this can be achieved to avoid a situation at the border "which would attract attention from dissidents".