Graham began his illustrious career with Thames Valley Police (TVP) in 1979, dedicating 31 years to service in uniform, where he notably spent five years as an Inspector on the Tactical Firearms Team. His tenure at TVP was marked by significant moments, including providing armed protection to Margaret Thatcher in the aftermath of the Brighton hotel bombing in 1984. He also played a pivotal role in responding to two IRA incidents in Reading and the tragic Hungerford shooting, which claimed the lives of sixteen individuals at the hands of Michael Ryan.
Throughout his time at TVP, Graham collaborated with a young Detective Sergeant Simon Chesterman in the Drug Squad, fostering a professional relationship that extended beyond Graham’s promotion to Superintendent in 2005, when he became Simon’s second-in-command in Buckinghamshire.
Transition to the Civil Nuclear Constabulary
Upon his retirement from TVP in 2010, Graham joined the Civil Nuclear Constabulary (CNC) just two days later, taking on the role of Inspector responsible for firearms policy. His responsibilities evolved over time to include Managed Response Solutions and various exercises. Notably, Graham authored the first Operation Temperer plan, which led to two deployments in 2017 following the tragic Manchester Arena bombing.
Graham’s career trajectory continued to rise as he was promoted to his current position as Chief Superintendent of B Division (formerly known as S Division). In this role, he introduced Section 22a Memorandums of Understanding with partner forces to enhance collaborative efforts. He also played a crucial role in establishing the first Professional Development Unit at Harwell and initiated promotion preparation sessions for those aspiring to become Sergeants and Inspectors. As Chief Superintendent, he oversaw the integration of EDF and Harwell into B Division and managed the operational transition at Hunterston and, more recently, Harwell.
Reflections on a Distinguished Career
Reflecting on his extensive career in policing, Graham remarked, “To be honest, it’s been a blast and I’d do it all again. Coming to the CNC in 2010 after 31 years with Thames Valley Police has worked out better than I dared to hope for. I certainly didn’t expect to end up as Divisional Commander for nearly eight years. The CNC has transformed beyond recognition in the last 16 years, and I hope I have contributed to that progress.”
He expressed gratitude to all those he had encountered throughout his career, stating, “Thank you for your advice, guidance and support – but most of all, thank you for your hard work – it’s made my role a pleasure and a privilege. I also want to extend my heartfelt thanks to my wife, Julie, and my family, who have supported me throughout this lengthy journey.”
A Legacy of Leadership and Respect
Graham concluded with his guiding principle: “What you do is important, but how you do it is equally important. Policing is fundamentally about doing the right thing, at the right time, in the right way – which is all I have ever endeavoured to achieve. I wish you all, and the CNC, every success in the challenging years ahead.”
Chief Constable Simon Chesterman commented on Graham’s remarkable career, stating, “I have known Graham (Dinger) for over 30 years. He earned widespread respect in TVP for his operational acumen and leadership, and I was fortunate to work alongside him in various capacities.” He acknowledged Graham’s invaluable contributions over the past 16 years, noting, “He will be a loss to policing, but after 47 years, I think he can proudly say he’s done his bit!”
Looking Ahead to Retirement
Assistant Chief Constable (Operations) Michael Vance praised Graham’s legacy, describing him as a leader characterised by humility and a clear purpose. “His leadership has focused on enabling others to perform at their best and ensuring those in his care were supported and empowered,” he remarked. Vance expressed gratitude on behalf of all who had the privilege of serving with Graham, highlighting his enduring influence and the values he embodied throughout his career.
As Graham prepares for retirement, he plans to write a book reflecting on his experiences during his ‘Six Decades in Blue’ (1970s – 2020s). He looks forward to spending quality time with his wife, three children, and seven grandchildren, as well as enjoying leisurely pursuits such as golf and soaking up the sun.

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