A ban on using two-wheeler Segways has deliberately been flouted by an MP in protest at the law.
Lib Dem Lembit Opik rode a Segway up and down outside the Houses of Parliament, challenging ministers to have him arrested.
He was joined by Conservative peers Lord Attlee and the Earl of Liverpool on the five-minute demonstration.
Both the Tories and Lib Dems have called for the 12mph battery-powered vehicles to be allowed in cycle lanes.
The Segway Personal Transporter, which can carry one person for 24 miles before it needs to be recharged, uses gyroscopes to maintain balance but can only be driven on private land in the UK.
