Teenage killers jailed for the death of hero PC Andrew Harper could have their sentences increased as their cases are set to be reviewed.
The jail time of Jessie Cole, Albert Bowers and ringleader Henry Long will be reviewed following criticism that their punishment is too lenient.
The three were convicted of manslaughter after Pc Harper suffered catastrophic injuries trying to stop them stealing a quad bike in Berkshire last August.
Brave cop Harper was caught in a crane strap dangling from the back of a Seat Toledo driven by Long, and dragged for more than a mile to his death.
The newlywed officer had been married for just four weeks to his wife, Lissie, who said she is now in a “lost and endless world”.
On Tuesday the Attorney General's Office confirmed that they have been asked to consider if the jail terms handed down are too lenient.
Long, of College Piece in Mortimer, was sentenced to 16 years, while Cole, from Paices Hill, Aldermaston, Reading, and Bowers, of Windmill Corner, Mortimer Common, Reading, were each handed 13-year terms.
A spokesman for the Attorney General's Office said: "The Attorney General's thoughts are with the family and friends of Pc Andrew Harper at this difficult time.
"I can confirm that we have received a request for the cases of Henry Long, Albert Bowers and Jessie Cole to be considered under the unduly lenient sentence scheme.
"The Law Officers have 28 days from sentencing to consider the case."
Pc Harper's widow Lissie had expressed bitter disappointment that her husband's killers were cleared of murder and instead found guilty of manslaughter.
The Attorney General has no power to order a retrial, and prosecutors would either need new and compelling evidence to apply for the acquittals to be quashed, or there would need to be proven interference with the jury.
Measures were put in place to protect the jury in the Pc Harper case, and one female juror was discharged after she was seen by a prison officer to mouth "Bye boys" to the teenagers in the dock.
But trial judge Mr Justice Edis said there was no evidence that the jury had been pressured.
He told the Old Bailey: "It may be believed in some quarters that the jury was subject to some improper pressure.
"To the best of my knowledge and belief there is no truth in that at all."
It comes after 22 back-bench Tories warned that “justice has to prevail” as they lobbied for harsher sentences for the three killers.
MPs including former security minister Sir John Hayes, ex-Environment Secretary Theresa Villiers, former Welsh Secretary David Jones, ex-international development minister Sir Desmond Swayne, Sir David Amess and Sir Edward Leigh previously urged the Attorney General to push for a stronger sentence.
They wrote: “We write to you with great sadness that justice has failed to prevail in a British court, leaving the innocent without closure and the vicious emboldened.
“From the outset, it is strikingly clear [there] were coordinated attempts by supporters of the accused to distort and derail the court case.
"[We] hope that you will investigate the conduct of the trial by seeking information from the Crown Prosecution Service to establish whether the proceedings were improper and whether accordingly the verdict is unsound.
Harper’s devastated widow wrote to Boris Johnson calling for a retrial after the teenage yobs were cleared of murder.