by the authorities competent for the prevention, investigation, detection or prosecution of criminal offences or the execution of criminal penalties, for a period of 30 years after the destruction of the firearm or the essential components in question.
ag na húdaráis atá inniúil chun cionta coiriúla a chosc, a imscrúdú, a bhrath nó a ionchúiseamh, nó chun pionóis choiriúla a fhorghníomhú, go ceann tréimhse 30 bliain tar éis scriosadh an airm tine nó na gcomhpháirteanna bunriachtanacha atá i gceist.