1. No, I regret to say that a police check from the UK would be necessary were you to apply for a passport in Ireland or for Irish citizenship. Essentially, the Irish Naturalisation & Immigration Service (www.inis.gov.ie) will require a police check in the UK because you are a UK citizen and (maybe) that was where you were born. This is just standard procedure. The Immigration authorities in Ireland look at the complete record, I regret to say. However, you should be aware that under the UK Rehabilitation of Offenders Act, once a conviction is over seven years in the past, then it is spent. So unless you were guilty of really serious felonies such as Murder, rape or armed robbery, your police certificate from the UK will come back empty if more than seven years have elapsed. So you should just seek one to see what comes up. Chances are that you now have a clean record in the UK owing to the passage of time!!