“ The Union may conclude agreements with third countries for the readmission to their countries of origin or provenance of third-country nationals who do not or who no longer fulfil the conditions for entry, presence or residence in the territory of one of the Member States. ”

“ The Union shall encourage cooperation between Member States in order to improve the effectiveness of systems for preventing and protecting against natural or man-made disasters.
Union action shall aim to:
(a) support and complement Member States' action at national, regional and local level in risk prevention, in preparing their civil-protection personnel and in responding to natural or man-made disasters within the Union; (b) promote swift, effective operational cooperation within the Union between national civil-protection services ”

“ The Union shall establish police cooperation involving all the Member States' competent authorities, including police, customs and other specialised law enforcement services in relation to the prevention, detection and investigation of criminal offences. ”

“ Article III-259 National Parliaments shall ensure that the proposals and legislative initiatives submitted under Sections 4 and 5 of this Chapter comply with the principle of subsidiarity, in accordance with the arrangements laid down by the Protocol on the application of the principles of subsidiarity and proportionality. ”