In a recent conversation with the Secretary of State for Northern Ireland, Mr. Paul Murphy, I suggested that this Bill would cause a problem with cross-Border situations because people come from the UK and Northern Ireland, in particular, into this State and may not have such cards. However, he helpfully pointed out that every Northern Ireland citizen, aged 18 or over, has a voter's card, a fact of which I had not thought. This type of document, which shows a person's photograph, date of birth and signature, can be designated by me under the residual provisions contained in the section. It will make it easy for people aged 18 to 21 to cross the Border and it is good news.