It follows from case-law that national measures liable to hinder, or to make less attractive, the exercise of fundamental freedoms guaranteed by the TFEU should fulfil four conditions, namely, they should: be applied in a non-discriminatory manner; be justified by public interest objectives; be suitable for securing the attainment of the objective which they pursue; and not go beyond what is necessary in order to attain that objective.
Eascraíonn sé as cásdlí gur cheart ceithre choinníoll a chomhlíonadh i mbearta náisiúnta a d’fhéadfadh bac a chur ar fheidhmiú na saoirsí bunúsacha a ráthaítear le CFAE nó a d’fhéadfadh a fhágáil gur lú an mhealltacht a bheadh ann na saoirsí bunúsacha sin a fheidhmiú, is iad sin: ba cheart iad a chur i bhfeidhm ar bhealach neamh-idirdhealaitheach; ba cheart cuspóirí leas an phobail a bheith mar údar leo; ba cheart iad a bheith oiriúnach chun an cuspóir a shaothraíonn siad a bhaint amach; agus níor cheart go rachaidís thar a bhfuil riachtanach chun an cuspóir sin a bhaint amach.