there are serious grounds for believing that a third-country national has committed a serious criminal offence, including a terrorist offence, or there are clear indications of his or her intention to commit such an offence in the territory of a Member State; or
tá forais thromchúiseacha ann lena chreidiúint go ndearna náisiúnach tríú tír cion coiriúil tromchúiseach lena n-áirítear cion sceimhlitheoireachta, nó tá comharthaí soiléire ann go bhfuil sé ar intinn ag an té sin cion den sórt sin a dhéanamh ar chríoch Ballstáit;