Peel Holdings have for many years been trying to get new byelaws passed at John Lennon Airport.
The Department of Transport have been blocking the changes. It seems that one of the sticking points is the desire of Peel Holdings to make it an offence for the keeper not to name the driver of a vehicle (byelaw 8.5).
Here is the relevant extract from the Impact Assessment document
The full correspondence between the DfT and Peel Holdings is available in this pepipoo thread, post #200.
Here are some more wise words from the DfT:
The Parking Prankster