the transfer of data is necessary for the prevention, detection or investigation in the territory of the Member States or in the third country concerned of such a terrorist offence or serious criminal offence;
is gá sonraí a aistriú chun an cion sceimhlitheoireachta nó na cionta coiriúla tromchúiseacha sin a chosc, a bhrath nó a imscrúdú ar chríoch na mBallstát nó na tríú tíre atá i gceist;