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Formula Derbyshire police use to decide if you get a speeding ticket

Figures have revealed the general formula used by Derbyshire police to decide when drivers travelling over the speed limit get a ticket.

The local force has 113 static camera sites across the county, with six cameras on the Derbyshire section of the M1, and also an average camera system on the A52 Brian Clough Way.

Now, results of a Freedom of Information request sent to the UK’s police forces by car leasing firm Riverdale Leasing has revealed when their speed cameras activate if a motorist is going above the speed limit.

Of 43 UK police forces contacted, a total of 21 responses were received, of which 57% of police forces advised the threshold for speed cameras is 10% plus 2 mph.

Among them was Derbyshire police, who say they follow the guidelines issued by the National Police Chiefs’ Council.

This means that if you are driving in a 30 mph zone, you would activate a speed camera if you were driving 35 mph. Or, if you were speeding in a 40 mph zone, you would meet the threshold at 46 mph.

Other authorities explained that officers use their discretion, or that the information couldn’t be disclosed to the public.

If you are driving in other counties, these are their policies according to the Riverdale Leasing research:

Avon & Somerset – 10% + 2 mph

City of London – 10% + 2 mph

Cumbria – 10% + 2 mph

Devon & Cornwall – 10% + 2 mph

Durham – 10% + 2 mph

Gloucestershire – 10% + 2 mph

Humberside – 10% + 2 mph

Kent – 10% + 2 mph

North Yorkshire – 10% + 2 mph

Essex – 10% + 2 mph to 9 mph

Lancashire – 10% + 3 mph up to 9 mph

Wiltshire – The devices aren’t set at any particular speed. Officers use their own discretion when setting the threshold.

Lincolnshire – + 2 mph up to 66mph and + 3% for all speeds higher than 66mph

Bedfordshire – Declined to disclose information

Hampshire – Declined to disclose information

Hertfordshire – Declined to disclose information

Leicestershire – Declined to disclose information

Northamptonshire – Declined to disclose information

Northumbria – Declined to disclose information

West Midlands – Declined to disclose information

However, these allowances are all at the discretion of the police There are people who have been shocked to find themselves fined for going just a few mph over the speed limit so police may take other factors into account too.

Depending how much over the limit you were going, your case might be referred to a magistrates court.

If the offence is minor, you may be invited to go on a speed awareness course rather than get a fine and points.

In 2017, the rules on speeding fines changed, and they’re now based on a percentage of your weekly income, with the minimum fine being £100.

This is in addition to getting points on your licence.