immigration authority

the competent authority responsible, in accordance with national law, for one or more of the following: (a) checking within the territory of the Member States whether the conditions for entry to, or stay on, the territory of the Member States are fulfilled; (b) examining the conditions for, and taking decisions related to, the residence of third-country nationals on the territory of the Member States insofar as that authority does not constitute a ‘determining authority’ as defined in point (f) of Article 2 of Directive 2013/32/EU of the European Parliament and of the Council, and, where relevant, providing advice in accordance with Council Regulation (EC) No 377/2004; (c) the return of third-country nationals to a third country of origin or transit