The European parliament invites you to present yourself
Just listen to this, David Martin a Scottish Labour type seems to be suggesting that if somebody (most liklely a civil servant, but not necessarily so) refuses to accept the Parliament's invitation to appear then they can get the British authorities to take them to court.
Imagine you are a lets say, a banker and they want to haul you over the coals for having the temerity to run a sucessful bank. They say they want to speak to you.
You refuse, you are too busy creating employment after all.
They then instruct the British authorities to take you to Court....