The UK Government has said it does not want any border posts between Northern Ireland and the Republic of Ireland after Brexit. Northern Ireland secretary James Brokenshire insists the proposals are realistic because of the trade involved for all sides. The UK stresses there should be no physical infrastructure, such as customs posts, at the border, which has almost 300 crossing points. Instead, the Government is arguing for a wide-ranging exemption under which small- and medium-sized businesses will not have to comply with any new customs tariffs. If the proposals are accepted, customs officials envisage using a mix of technology and physical checks to monitor the compliance of bigger businesses engaged in international trade. Critics are concerned that an open border might prove to be a ‘back door’ for EU citizens who wish to enter the UK without proper checks.