James Ellson, a former Greater Manchester police officer, has transitioned from frontline law enforcement to crime fiction writing, drawing heavily from his 15 years of experience investigating serious crime in Manchester. After leaving the police force due to a mental health breakdown, Ellson has established himself as a novelist with a focus on gritty, realistic crime stories set against the backdrop of South Manchester.

During his police career, Ellson worked extensively on gang-related violence and complex investigations in areas like Moss Side, once notorious enough in the 1990s to earn the nickname “Gunchester.” His role sometimes involved coordinating with specialist units such as GMP’s Xcalibre team, which monitors gang tensions, and authorizing urgent tactical responses. The demanding nature of his work took a significant toll on his mental and physical health, leading to an abrupt end to his policing career.

Following his departure from the force, Ellson and his wife relocated to a smallholding, where he began cultivating fruit and vegetables and keeping bees. It was during this period that he turned to writing, releasing his first novel, *The Trail*, in 2020. Since then, he has published a series of five books featuring Detective Chief Inspector Rick Castle, a character inspired by Ellson’s own experiences.

Ellson’s latest novel, *The Rule of Threes*, published earlier this month, follows DCI Castle investigating the disappearance of a protected witness relocated to a remote area of Scotland. This installment delves into organised crime and also explores the psychological pressures faced by police officers. Drawing on his knowledge of Scotland as a keen mountaineer, Ellson incorporates authentic landscapes alongside the intense emotional challenges of the job. In the novel, Castle struggles with trauma and self-doubt, seeking therapy and confronting the unreliability of memory—scenes which Ellson has described as some of his most compelling work.

Now balancing roles as a smallholder, public speaker, and novelist, Ellson will appear at the Theakston Old Peculier Crime Writing Festival in Harrogate later this month. Reflecting on his dual careers, he acknowledges the difficulty of the transition but says he remains passionate about both policing and writing. “I loved being a police officer, despite everything,” he said. “The job is fascinating, and I can’t understand why everyone doesn’t want to join.”

Ellson’s works continue to resonate for their authenticity and vivid portrayal of policing’s psychological impact, cementing his place in contemporary British crime literature. *The Rule of Threes* is available in paperback and ebook formats.