Debbie Adlam is calling for a minimum jail term of 20 years for anyone who kills an officer, with no chance of parole during that time.
Driver Henry Long, 19, was handed a 16 year jail sentence while passengers Jessie Cole and Albert Bowers, both 18, each received 13 years.
Henry Long, 19, Jessie Cole, 18, and Albert Bowers, 18, were cleared of murder but still face years in jail for manslaughter.
Gavin Collins, 39, has been sentenced to life in prison after he killed an 87-year-old grandfather when he crashed into him in a stolen car.
Two men have been jailed after 40-year-old Gavin Garraway was stabbed to death in an attack that lasted just 15 seconds in March last year.
Families have expressed their "disappointment" and "devastation" after a pilot was cleared over the deaths of 11 men in the Shoreham air crash.
An official request to extradite speedboat killer Jack Shepherd from Georgia has been submitted by UK authorities.
The sister of Charlotte Brown, who died after being thrown from Jack Shepherd’s speedboat on a first date, said that he is only “thinking of himself”.
Jack Shepherd went on the run after being convicted of manslaughter following the 2015 death of Charlotte Brown
Speedboat killer Jack Shepherd has been arrested in Georgia after handing himself in to authorities after spending months as a fugitive.
Richard Curtin finally confessed to killing Paul Smith last year
Molly McLaren was in a relationship with Joshua Stimpson for seven months before splitting up
Julia Hartley-Brewer and Labour councillor Pat Mason had a heated debate about the Conservative council in Kensington and Chelsea
Monalisa Perez reportedly claims it was her boyfriend's idea to conduct the stunt
An illegal Iraqi immigrant beat a 64-year-old man at the Colnbrook immigration removal centre in west London
Jonathan Goldberg QC tells Julia Hartley-Brewer that the court system has been discredited by this case
Lillo Troisi has been detained under the mental health act, after admitting to manslaughter and arson
Jonathan Goldberg QC said that Marine A's previous legal team made a very serious omission by not including psychiatric evidence
Marine A's murder conviction has been replaced with manslaughter on the grounds of diminished responsibility
A pub chef has been jailed for life for murdering his partner in the mistaken belief she was cheating on him
A teenage student has pleaded not guilty to the manslaughter of a 13-year-old boy, who died after a playground incident at school