Crime dramas often misrepresent the complexities of cold cases, according to Dave Grimstead, a former police officer with over three decades of experience. He emphasizes that real-life investigations do not neatly conclude in a few episodes with a clear timeline and escalating suspense. Instead, cold cases involve a series of false leads, frustrating detours, and unresolved questions. Grimstead notes that these cases are rarely solved by a single detective; rather, they demand the collaborative efforts of a larger team than what is typically portrayed on television. However, one aspect that rings true is the tenacity of detectives who remain committed to unsolved cases, often keeping these mysteries in mind long after they have moved on to other investigations.
For Grimstead, one particularly haunting case was that of Melanie Hall, who vanished in June 1996 at the age of 25. Last seen arguing with her boyfriend outside Cadillacs nightclub in Bath, Hall’s case quickly transitioned from a missing person inquiry to a murder investigation. Despite extensive interviews, surveillance footage reviews, and public appeals, the mystery surrounding her disappearance persisted. In 2009, as Grimstead’s colleague Mike Britton continued the investigation, Hall’s body was discovered in a bin liner near the M5 motorway. Although this discovery occurred just days before Britton’s planned retirement, he chose to stay on to work as a civilian investigator on the case, which remains unresolved to this day.
After retiring in 2012, Grimstead carried the weight of cold cases, including Hall’s, and their impact on families and colleagues. He remarked on the rapid pace of investigations, where new cases quickly take precedence while families of the missing remain in a state of emotional limbo. Even when they receive new information, years can pass with little support for them to pursue leads, and police officers like Britton often face pressure to manage resources efficiently.
While on vacation in Cornwall, Grimstead found inspiration by observing the Royal National Lifeboat Institution (RNLI) at work, prompting him to ponder whether a similar volunteer-based search-and-rescue service could assist those missing on land. This idea led to the establishment of Locate International (LI) in 2019. The organization recruits and trains volunteers who are organized into teams and assigned to cases involving long-term missing persons or unidentified deceased individuals. Grimstead believes these cases are particularly susceptible to falling through the cracks due to limited resources and dwindling public attention.
Grimstead’s book, “Someone Must Know,” recounts various stories of individuals who have gone missing. Among them is Karen Milsom, a care worker from Bristol who vanished from her home in France in August 2019, and the unidentified “Sligo Man,” who died under mysterious circumstances in Ireland in 2009. Another case features “Wembley Point Woman,” who jumped from a high-rise building in London over two decades ago. Each of these cases is enveloped in sorrow and enigma, yet now has a dedicated team of volunteers, ranging in age from 18 to 77, including professionals from various fields, all striving to provide answers. The last recruitment drive for LI, which concluded in May, attracted 200 new volunteers, all of whom work without pay.
For Grimstead, now 62, this initiative marks a return to his early experiences in policing, where he engaged with local communities in East London. Originally from Bristol, he joined the police force at 16, choosing this path over pursuing a career in physical education. His early career included a significant role in community policing in London, where he was inspired by the dedication of volunteers at community centers. Following two years as a cadet, Grimstead became a full-fledged officer with the Metropolitan Police, where he played a role in establishing one of the first neighborhood watch programs. After marrying a special constable, he returned to Bristol, where his daughter has also joined the police force. Much of his career focused on organized crime.
Throughout his tenure in law enforcement, Grimstead found it particularly challenging to leave cold cases unresolved. “It’s difficult to move on when you have to prioritize new cases,” he explains, noting that long-term missing persons and unidentified deceased cases are generally considered lower priorities for police departments. Unlike cases like Melanie Hall’s, most do not involve a crime. Grimstead questions the feasibility of allocating resources to non-criminal cases, especially when police departments are inundated with unsolved violent crimes. On average, local forces receive 12 to 18 missing person reports each day, with 90% of individuals returning within 48 hours; however, approximately 10,000 people have been missing for over a year.
