asked Her Majesty's Government:

How many speeding motorists were observed by the mobile speed camera located on the north-east carriageway of the A3 just before the Hook underpass during the morning of Wednesday 19 March; and how much income was raised by that camera over the same period. [HL2709]

This information is not held by the Department for Transport. Enforcement is entirely a matter for the local road safety partnership. They have the flexibility to enforce in response to community concerns or at sites where there are speeding problems and a high risk that casualties will occur.