Leah’s Law would mean mandatory prison for anyone convicted of a third sexual offence. A documentary about Leah Croucher aired on Tuesday night, and 20,284 people signed her parents’ petition the next day. Here is what the law would do, where the petition stands, and how to watch part two.

A petition calling for a new sentencing law in Leah Croucher’s name added 20,284 signatures on Wednesday, the day after a documentary about her killing was broadcast.

It stood at 70,236 verified signatures by Wednesday afternoon. Close to a third of that total arrived in a single day.

The campaign, started by her parents Claire and John Croucher, wants a mandatory minimum prison sentence for anyone convicted of a third sexual offence.

Their daughter was 19 when she was killed in February 2019 by Neil Maxwell, a convicted sex offender who was under probation supervision at the time and who the authorities had lost track of.

The two-part documentary, The Search for Leah Croucher: A Parent’s Nightmare, began on U&W on Tuesday and concludes tonight.

What is Leah’s Law?

Leah’s Law would make a prison sentence mandatory for anyone convicted of a third sexual offence, with a District Judge overseeing sentencing in repeat cases that fall below that threshold.

The petition makes a comparison argument rather than an emotional one. Mandatory minimum sentences already exist in England and Wales for domestic burglary and for Class A drug trafficking. The Crouchers’ case is that repeat sexual offending is treated more leniently than either, and that there is no defensible reason for it.

Claire Croucher put the family’s reasoning plainly to MKFM. “If we don’t stand up and say the law is wrong and it needs to change, who else is going to?”

The family argue that a law of this kind, had it existed earlier, would have kept Maxwell in prison rather than under supervision in the community.

How many people have signed the Leah’s Law petition?

70,236 verified signatures as of Wednesday afternoon, 14 October, with 20,284 of those added that day.

The petition launched in late September 2026 and reached 44,000 in its first fortnight. It stood at close to 50,000 on Monday 12 October, the day before the documentary began.

Which puts roughly 20,000 signatures on the broadcast itself. The family spent seven years trying to get this story heard, and a single night of television moved the number further than the preceding week had.

Will Leah’s Law be debated in Parliament?

Not automatically. This is a Change.org petition, not a UK Parliament one, so the 100,000-signature debate threshold does not apply to it.

That threshold belongs to the Government and Parliament petitions site. A petition there which passes 10,000 signatures gets a written response from the Government, and one which passes 100,000 is considered for debate, and is usually debated, unless the Petitions Committee decides the issue has been covered recently or is already scheduled.

A Change.org petition carries no such mechanism. It is a campaigning tool, and its effect depends on the pressure it generates rather than on any rule being triggered by a number.

That does not make 70,236 meaningless. It makes it evidence rather than a trigger. Campaigns of this kind have reached legislation before, but by way of MPs, ministers and sustained coverage, not by crossing a line on a counter.

How to watch The Search for Leah Croucher: A Parent’s Nightmare

Both parts are on U&W at 9 pm, Tuesday 13 and Wednesday 14 October 2026, and stream free on U.

Each episode runs 75 minutes. Part one is available to stream now, so you do not have to have seen it live to follow tonight’s conclusion. Streaming on U is free but requires you to sign in.

Claire and John Croucher appear throughout, along with Leah’s sister Jade.

The episode titles are not incidental. Part one is about Haydon.

What happened to Leah Croucher?

Leah Croucher left home in Milton Keynes on the morning of 15 February 2019 to walk to work and was never seen again. Her remains were found in an attic three and a half years later.

She was 19. She left the family home on Quantock Crescent in Emerson Valley at around 8 am for a two-mile walk to her job at a direct debit collection agency in Knowlhill. She never arrived.

The last confirmed sighting is CCTV footage at 8.16 am on Buzzacott Lane in Furzton. Her phone left the mobile network at around 8.34 am and never reconnected.

Thames Valley Police visited more than 4,000 homes across 2019 and 2020. One of them was 2 Loxbeare Drive in Furzton, less than a mile from where she lived. Officers called at least twice. Nobody answered, and they moved on.

On 10 October 2022 a handyman investigating a smell at that address found her rucksack and personal possessions. Her remains were in the attic.

The force’s handling was reviewed afterwards at the request of Police and Crime Commissioner Matthew Barber. In a statement published in November 2022, he said the review found the force had taken her disappearance seriously from the outset, and that “there is nothing that suggests the police had any reasonable lines of enquiry” that would have connected Leah to Maxwell or to that house any sooner. The murder investigation, Operation Innsbruck, remains open.

Who was Neil Maxwell?

A convicted sex offender who was employed to maintain 2 Loxbeare Drive and was the only person with access to it. Police named him as their prime suspect on 14 October 2022.

The owners of the property lived overseas. Maxwell held the keys.

He died in April 2019, two months after Leah disappeared, which means no one has ever been tried for her killing.

What did the inquest find?

The inquest concluded in June 2024 that Leah was unlawfully killed by Maxwell on or around 15 February 2019, probably during a sexual attack. The cause of death could not be established.

Milton Keynes coroner Tom Osborne identified a series of failings in how Maxwell was being monitored at the time.

He was supervised by an inexperienced probation officer. The risk he posed to the public was underestimated and not escalated. His risk assessment was deficient. Monitoring failed to pick up that he was neither attending his appointments nor living at his registered address. And information was not properly shared between police and probation through ViSOR, the violent and sex offender register.

Osborne stopped short of saying those failings caused her death. “I cannot therefore conclude that those failings identified contributed to her death,” he said, while allowing that “it may be possible that those findings may have played a part in her death.”

That distinction is the reason the family are campaigning on sentencing rather than on supervision. Their argument is that the monitoring question would never have arisen if he had been in prison.

Why are the family trying to clear John and Haydon’s names?

Because for more than three years, online speculation accused Leah’s father and brother of involvement in her disappearance.

Claire Croucher has described the family’s two aims in the same breath. “We made it clear that we had a couple of objectives,” she told MKFM, “to clear John and Haydon’s name and to make Leah’s Law.”

Leah’s brother Haydon died in 2019, in the months after she vanished. Her parents have spoken about losing two children.

The accusations continued regardless, and the family went as far as discussing the forensic evidence publicly to end them. “It is conclusive,” Claire said.

It is the part of this story that has had the least coverage and says the most about what the last seven years have actually been like for them.

Where can you sign the Leah’s Law petition?

On Change.org, under the title “Leah’s Law: mandatory sentences for repeat sex offenders”, started by Claire and John Croucher.

The petition sets out two asks. A mandatory minimum prison sentence for a third sexual offence conviction, and a District Judge overseeing sentencing in repeat sexual offence cases that fall below that bar.

You can read and sign it on the Leah’s Law petition page.

Your questions

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