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Drug driver, 24, was waiting to have his licence revoked when he killed father-of-three in head-on crash while high on cannabis

A 24-year-old man, Robbie Kenneth Diffey, was involved in a fatal head-on collision while driving under the influence of cannabis and alcohol. The crash resulted in the death of Pete D'Arcy, a 57-year-old father of three. Diffey had been previously stopped by police for drug driving and had been recommended for license revocation, but this process was delayed. An inquest concluded that Pete D'Arcy was unlawfully killed.

A drug-driver was stopped by police and waiting to have his licence revoked just weeks before he killed a father in a head-on crash while high on cannabis.

Pete D'Arcy, 57, died when his Volkswagen T-Roc was struck by an Audi A4 driven by Robbie Kenneth Diffey, 24, on December 13, 2025.

Diffey, who was speeding at 92mph and under the influence of drugs and alcohol , crossed onto the wrong side of the road moments before the collision.

An inquest heard that the 24-year-old, who also died in the crash, had been stopped by police two months earlier for driving under the influence of cannabis.

As a result, Dorset Police recommended that his licence be revoked. However, it was not processed until days after the tragedy.

A coroner later ruled that Mr D'Arcy had been unlawfully killed.

Louise said her husband's death could have been avoided and revealed the devastating lasting impact it has had on their family.

The carer, from Salisbury, Wiltshire, said: 'The other driver was recording it, and he was going nearly 100mph - he was on Pete's side of the road, and the worst of it is he'd been stopped weeks before for drug driving.

Pete D'Arcy (pictured), 57, died when his Volkswagen T-Roc was struck by an Audi A4 driven by Robbie Kenneth Diffey

Pete pictured with Louise and their son

'He didn't have his licence taken away, and he was waiting to be banned - the police had sent the paperwork off to the DVLA saying they were waiting on blood results to ban him.

'I knew it wasn't Pete's fault - I've known him for 25 years, we were together 23 years.

'He'd never had an accident, and he drove across the country for his job daily.

'I know his [Diffey's] family have lost somebody as well, but it was his choice to get behind that wheel - he didn't think of anyone else.

'My 17-year-old, he doesn't want to drive now because of this. My daughter, Lucy, passed her test last year, and she doesn't want to drive either.'

Louise and Pete had separated three years before the crash and Louise said he had dropped off their son at home just minutes before he died.

She continued: 'He had taken our 17-year-old son out for the day to watch the football.

'He had dropped him back, and on the way back, about 10 minutes away, there was an accident. The police came round about half 10 in the evening.

'You get a knock on the door and see two policemen, but it didn't even enter my head that I'd be in that situation.

'We were told what had happened, but they couldn't give us a lot of detail at the time, only that both drivers had died at the scene. It's been a rollercoaster with so many questions.

'We've seen pictures of the car - the impact was so bad that the engine came out of the car and the bonnet flew off.

'The other guy was coming from the Wimborne side, and Pete didn't stand a chance basically - there have been a number of accidents there. '

Robbie Kenneth Diffey (pictured), 24, who was travelling at 92mph and under the influence of drugs and alcohol, crossed onto the wrong side of the road moments before the collision

The inquest on May 28, heard that police had found an open bottle of Peroni between Diffey's legs after the crash.

Police also found a Snapchat video which showed Mr D'Arcy flashing his lights a second before impact.

Coroner Rachael Griffin concluded that Mr D'Arcy's death was 'unlawful' and described Diffey's driving as 'audacious and abhorrent'.

Reacting to the inquest, Louise said the crash could have been 'prevented.'

She added: 'It was really upsetting - it could have been prevented if the police had more power to take licences off him when he got stopped.

'He was stopped on October 25, and they didn't get the blood test result until December 24, and the crash was on the 13th.

'They need more powers and to be able to speed the process up. It's just awful.'

Read the full article at Daily Mail
Source document: Inquest findings

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Daily MailIndependentCenter3 days ago
Drug driver, 24, was waiting to have his licence revoked when he killed father-of-three in head-on crash while high on cannabis

A 24-year-old man, Robbie Kenneth Diffey, was involved in a fatal head-on collision while driving under the influence of cannabis and alcohol. The crash resulted in the death of Pete D'Arcy, a 57-year-old father of three. Diffey had been previously stopped by police for drug driving and had been recommended for license revocation, but this process was delayed. An inquest concluded that Pete D'Arcy was unlawfully killed.

Bias read (Center): The article presents factual information without overtly biased language or framing. It reports on a traffic accident involving drug use and the legal consequences, without taking a stance on broader policy issues or political arguments.

Official sources cited

  • court Inquest findings
  • government Dorset Police records

Go to the primary sources (2)

The official sources this coverage is built on. Read them directly to bypass framing.

  • courtInquest findings
  • governmentDorset Police records