The Prime Minister has said his Government is committed to introducing drug testing at police stations in the wake of the death of Lillian Groves.

Responding to a question from Croydon Central MP Gavin Barwell at Prime Minister’s Questions in Parliament on Wednesday, David Cameron said the case of a drug-driving law had "great strength" and legislation could be included in the next Queen's Speech.

Mr Barwell was highlighting the campaign of the family of Lillian Groves, who was killed when she was hit by a car outside her house in New Addington in June last year.

Driver John Page, 36 was speeding, uninsured and had been smoking cannabis when he ploughed into the 14-year-old at more than 40mph.

Page received an eight-month sentence, reduced to four with an early plea, for causing death by careless driving and causing death whilst driving uninsured and a two-year driving ban.

He was released after eight weeks.

Lillian’s family have been calling for a Lillian’s Law which would introduce roadside drugalysers as well as changing the law on drug-driving.

Mr Cameron added he was looking to see if a similar law to that for alcohol could be introduced.