He fails to understand that the importance of the ECHR to Nationalists & to Ireland is that it enshrines rights beyond the reach of the UK govt (and Stormont) that could be enforced directly against the UK, including against the police and MI5/6. David Allen Green summarised it superbly in a blog

Quite: "Do you really not trust the country of the: Birmingham 6; Guildford 4; Maguire 7; Bloody Sunday cover up; etc?"