They will seek to conduct trade amid stringent European sanctions
the principle of legality requires the examination of all applications for registration to be stringent
Moreover, for reasons of legal certainty and, indeed, of sound administration, the examination of any trade mark application must be stringent and full, in order to prevent trade marks from being improperly registered (Curia Europa)
stringent, state-enforced birth control
stringent: estricto, severo, riguroso