PC Andrew Harper was killed in 2019 when he was dragged by a car down a country road

The mother of PC Andrew Harper has told the BBC she is "devastated" two of his killers remain eligible for early release after the government revised plans to tackle overcrowding.

Prisoners who committed rape, grooming, and serious child sex offences will be excluded from the scheme for England and Wales, the government announced on Monday, in a bid to tackle prison overcrowding.

Prime Minister Andy Burnham said he "wanted to go even further", but that would not be possible without the prison system collapsing and putting the public "at much greater risk".

PC Harper, 28, was killed in 2019 when he was dragged by a car down a country road as three teenagers fled the scene of a quad bike theft in Berkshire.

Speaking to BBC Newsnight, his mother, Debbie Adlam, said: "It feels like we're letting Andrew down again.

"We've been through the justice system, we thought we'd done as best as we could.

"Now we're standing up to fight again... so I just feel really let down, for Andrew's sake as well as ours."

His family previously said they had received a letter from the Ministry of Justice confirming that two of the offenders who killed the officer could be included in the scheme.

The driver of the vehicle, Henry Long, received a 16-year sentence and would not have been eligible.

Jessie Cole and Albert Bowers, who were passengers in the car and sentenced to 13 years for manslaughter after a trial at the Old Bailey in 2020, would become eligible for release after serving half of their sentences.

Adlan said she was "devastated" by the government's latest announcement, and vowed to continue to fight for justice. "I could not sit back and do nothing," she said.

She added that Justice Secretary Alex Norris had called her to explain the situation and apologise.

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Watch: 'The worst has happened,' says mother of PC Harper

In a separate statement, Lissie Harper, PC Harper's widow, said it was "disgusting" that his killers could be eligible for early release.

She said she was "beyond appalled and bristling with anger to hear that Andrew's killers are soon to be free to roam the streets".

Thames Valley Police Chief Constable Jason Hogg said the decision not to exclude them was "demoralising for all police officers".

The Sentencing Act was amended in January, with the eligibility for early release based on the length of fixed sentence, rather than the type of offence.

The act already excluded some of the most serious and dangerous offenders, such as murderers serving life sentences or those on extended sentences.

But last month, Burnham paused the plans after backlash from survivors. The scheme will now restart in October.

Announcing the changes on Monday, he said: "I fully understand the anger, anxiety and distress that's been caused. I've heard that loud and clear."

Under the revised plans, rape and child sexual offences will now also be excluded from early release.

The government also announced an extra ยฃ10 million will go to front-line victim support services, including a new national helpline.

This move does not require changes to the existing legislation before October, the government said, though it may make amendments in the future to exclude certain offenders from being released.

Offenders of other crimes serving longer sentences of four years or more will be eligible for release halfway through their sentences rather than two-thirds as had previously been the case.

Those serving less serious sentences could be freed after a third of their time, rather than half.

The changes are due to be phased in, beginning with prisoners serving sentences of less than 575 days, going up to inmates jailed for 12 years or more being eligible for early release in June 2027.

The "presumption" will be that offenders are tagged and will face longer periods of supervision and tough new rules including "restriction zones", Burnham said.

The number of individuals released each time will depend on the make-up of the prison population, which the government says will evolve between now and implementation.

Burnham said he "wanted to go even further" with the changes to the scheme, but that wasn't possible without the prison system collapsing

Burnham made the announcement a day before going on holiday overseas.

Having taken office on 20 July, he is taking a break from day-to-day duties, but staying in contact with officials, the BBC understands.

Reacting to the early release announcement, a prison officer told the BBC that they were "creaking at the seams" and that "delaying the releases until October could mean we simply run out of space".

A probation officer said it was "not clear there's anything actually new here in terms of how probation staff are going to manage people being released earlier".

Separately, those who serve the full sentence and are convicted of rape or serious child sex offences will face stronger surveillance after leaving prison, the government said.

This includes 12 months of GPS monitoring and strengthened community supervision.

Calling the announcement a "U-turn", Shadow Justice Secretary Nick Timothy said it "doesn't go far enough".

"Some child sex offenders and killers ... will still be released early. And the trauma of victims being told their abusers may be released can't be undone," he said.

The Victims' Commissioner for England and Wales, Claire Waxman, said that while the changes to the scheme "will be well received by some victims, most will not fall within those categories, and exclusions alone cannot guarantee victim or public safety".

Domestic Abuse Commissioner Dame Nicole Jacobs criticised the decision to not exclude domestic abuse perpetrators.

"It is critical that no abuser is released in October unless I am confident that victims' safety is not being compromised," she said.

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