commun secretari gener european union articl convent establish council accord articl treati european union mutual assist crimin matter member state european union sign convent establish council accord articl treati european union mutual assist crimin matter member state european union grand duchi luxembourg made declar articl convent quot accord provis articl convent establish council accord articl treati european union mutual assist crimin matter member state european union sign brussel hereinaft convent govern grand duchi luxembourg declar person data commun grand duchi luxembourg convent member state grand duchi luxembourg subject provis articl convent circumst case requir member state concern obtain consent data subject person data purpos refer articl convent prior consent grand duchi luxembourg respect proceed grand duchi luxembourg refus limit transmiss person data accord provis convent instrument refer articl convent circumst case grand duchi luxembourg refus give consent request member state applic provis paragraph reason decis write quot