NI elections do not comply with international (OSCE) standards.  PR-STV is good; but the way party activists campaign ON POLLING DAY, and sometimes, INSIDE THE POLLING PLACE, is appalling!  BBC Radio 4, PM programme, interview, 27.3.2024, is on https://www.bbc.co.uk/sounds/play/m001xmfx and it runs from minute 46 to 54.  See also 2023-17, -14 and -09.