In reply to all the people who aren't aware
the law has changed:
From:
http://assets.dft.gov.uk/publications/guidance-unpaid-parking-charges/guida...
3.1 The Protection of Freedoms Act 2012 makes a number of changes to the law related to parking. It bans private sector wheel-clamping and vehicle removal where there is no lawful authority to do so, and, as a balance to that, provides landholders with extra powers to manage parking on their land once the ban comes into force. It does this by allowing landholders, in certain circumstances, to hold the registered keeper of a vehicle liable for unpaid parking charges if the registered keeper refuses or is unable to name the driver at the time...
3.5 Schedule 4 of the Protection of Freedoms Act... allows, providing certain conditions are met, the landholder to pursue the registered keeper of a vehicle for unpaid parking charges if the registered keeper refuses or is unable to identify the driver at the time the parking charge was incurred. This is often referred to as “keeper liability”. However the registered keeper cannot be liable for any unpaid parking charges if he or she identifies the driver of the vehicle at the time the parking charge was incurred.
3.6 In order to enforce a parking ticket a landholder first has to be able to show that a contract to park existed between the driver and the landholder, and that the terms and conditions of that contract have been broken by the driver.
5.2 For Schedule 4 to apply the driver of a vehicle must first be liable for unpaid parking charges. There are broadly two situations where a driver could become liable for parking charges:
a. where a driver has entered into a contract to park on private land and failed to comply with the terms and conditions of that contract; or
b. where a driver has trespassed on private land where signs showing charges for unauthorised parking are displayed.
7.1 Contracts for parking on private land can arise in a number of ways. However normally a car park will have signs setting out the terms and conditions upon which parking is offered. Drivers can then decide whether or not to accept those terms and conditions. In most cases a driver who parks in a car park with clear signage setting out the terms and conditions will be deemed to have accepted the terms and conditions and therefore entered into a contract to park with the
landholder.
7.2 Parking contracts, like any contract, must be made in accordance with the general law – for example, consumer protection law would be relevant to establishing whether or not the signs at a car park were sufficient, and the terms and conditions were fair. If it can be shown that a contractual term was unfair, it follows that the term cannot be relied upon to enforce a parking charge.
8.1 A driver can be liable to pay a charge for parking on land where parking is not invited and they are trespassing. For Schedule 4 to apply to trespass situations the landholder needs, as a minimum, to place clear signs stating that parking is not permitted and setting out the charge that will be sought for unauthorised parking (i.e. damages for trespass). For example “No parking – charge £50 for unauthorised parking”. Charges sought for trespass must be appropriate.
The new law only covers England and Wales, Scotland has different rules.