Member States shall take the necessary measures to ensure that the terrorist offences referred to in Article 3 and offences referred to in Article 14, insofar as they relate to terrorist offences, are punishable by custodial sentences heavier than those imposable under national law for such offences in the absence of the special intent required pursuant to Article 3, except where the sentences imposable are already the maximum possible sentences under national law.
Glacfaidh na Ballstáit na bearta is gá chun a áirithiú go mbeidh na cionta sceimhlitheoireachta dá dtagraítear in Airteagal 3 agus na cionta dá dtagraítear in Airteagal 14, a mhéid a bhaineann siad le cionta sceimhlitheoireachta, inphionóis le pianbhreitheanna choimeádta a bheidh níos troime ná na cinn atá infhorchurtha faoin dlí náisiúnta le haghaidh na gcionta sin in éagmais an intinn speisialta a éilítear de bhun Airteagal 3, ach amháin i gcás inarb ionann na pianbhreitheanna infhorchurtha agus na pianbhreitheanna uasta is féidir faoin dlí náisiúnta cheana.