evidence: Devolution in Northern Ireland Devolution means that the United Kingdom government has transferred a wide range of powers to the Northern Ireland Assembly. This means that local politicians, instead of MPs in Westminster, make key decisions on how Northern Ireland is governed. [...] The House of Commons is elected by the public. The political party with the most members forms the government of the UK. Northern Ireland politicians are elected to the House of Commons but the majority come from England, Scotland and Wales.