A police constable accused of driving at speeds of up to 159mph, has told a court that at no time did he consider he was putting anybody at risk.
Pc Milton denies all the charges
Mark Milton, 38, from Telford, was on night patrol in an unmarked police vehicle when the speeds were recorded on a video box inside the car.
The video, shown at Ludlow Magistrates Court on Tuesday, showed top speeds of 159mph on the M54 motorway.
Pc Milton, an advanced police driver, denies all the charges.
The officer told the court on Tuesday he had been familiarising himself with the characteristics of a new car and his driving was always consistent with the training of an advanced driver.
Pc Milton is also accused of driving at 100mph in a 60mph zone and 60mph in 30mph zones.
The court was told on Monday Pc Milton reached the speeds while testing out a new Vauxhall Vectra GSI police car during night patrol in December 2003.
The prosecution said an on-board video camera had shown the officer had driven at grossly excessive speeds putting the safety of other road users at risk.
The case continues.