Question to the Foreign, Commonwealth & Development Office:

To ask Her Majesty’s Government whether ministers and civil servants are required to comply with and execute EU law, and under what circumstances they can depart from the requirements of EU law prior to the date when withdrawal from the EU triggered by Article 50 is completed.

This question was answered on 14th July 2016
The UK remains a member of the EU until the process of leaving is concluded. Consequently, rights and obligations in the EU Treaties and other EU law continue to apply until that time.