Can an enforcement agent approach me in a public car park and use his vehicle to block the exit?

There are two separate questions, which are

Can an enforcement agent approach me in a public car park?

and use his vehicle to block the exit?

The first question, the bailiff may approach a debtor anywhere in England & Wales.^[1]

The bailiffs power to take control of goods is limited to where the debtor lives or carries on a trade or business,^[2] or upon application by the bailiff to the court for a warrant of entry to specified premises.^[3]

A public car park, if it is privately owned, and not a highway, is not a place where bailiffs can take control of goods. If a bailiff does so, then the debtor has remedy,^[4] by applying to the court for the controlled goods to be returned to the debtor for a breach of the enforcement provisions.^[5]

The second question, the bailiff cannot use a vehicle to block a public exit or entrance. When that happens, then the police should be called because the bailiff might be committing a traffic offence.

If a person is trapped on land, and wants to leave, then the bailiff might be guilty of false imprisonment. The proof of guilt must be that the bailiff was reckless or intentional (but not both) and restrains a victim's freedom from a particular place.^[6]

^{[1] Paragraph 11(1)(a) of Schedule 12 of the Tribunals, Courts and Enforcement Act 2007

[2] Paragraph 14(6) of Schedule 12 of the Tribunals, Courts and Enforcement Act 2007

[3] Paragraph 15 of Schedule 12 of the Tribunals, Courts and Enforcement Act 2007

[4] Paragraph 66 of Schedule 12 of the Tribunals, Courts and Enforcement Act 2007

[5] Civil Procedure Rule 84.13

[6] See R v Rahman (1985) 81 Cr App Rep 349 (paywall)}