Missing person search checklist: from the first hour to stand-down

Time works against the missing person in almost every scenario. An elderly person with dementia gets colder, a child gets further from the last place anyone saw them, a walker with an injury has fewer hours of daylight. Meanwhile the evidence fades. Rain washes out footprints, witnesses forget details, and the missing person’s phone battery runs down.

The first hours are also when a search is most likely to go wrong for organisational reasons. People arrive faster than anyone can brief them, the same path is walked four times while a ditch next to it is never checked, and a clue found at 22:00 reaches the person in charge at midnight. Much of the checklist below is there to prevent that kind of loss.

Across the UK a missing person search is a police matter. The police take the report, assess the risk, decide what kind of search is needed and run it. Under the UK search and rescue framework they coordinate search and rescue on land and inland waters, while HM Coastguard handles the sea, cliffs and shoreline. Fire and rescue services, mountain and lowland rescue teams, search dog handlers and drone teams support the police when asked. Volunteers who turn up on their own should report to the police or the search coordinator rather than start searching separately.

The risk assessment sets the pace. National guidance for forces in England and Wales, the College of Policing’s Authorised Professional Practice on missing persons, places every case on a scale of risk, and a person assessed as high risk gets an immediate, intensive response. In those cases forces typically bring in a trained police search adviser (PolSA) or search manager to plan the search, and may ask lowland or mountain rescue teams to help. Police Scotland works with Scottish Mountain Rescue teams in a similar way: you dial 999, ask for the police, and the police decide whether to involve the team.

You do not have to wait 24 hours to report someone missing. Missing People and Police Scotland both say so plainly: call 999 if the person may be at risk of harm, otherwise 101 or your local station. If talking to the police is difficult, the Missing People helpline on 116 000 can help first. For someone living with dementia, many forces run the Herbert Protocol, a form the family fills in ahead of time with a photo, medication, routines and places the person likes to go, so it can be handed straight to officers if they go missing.

Start from the last known position and work outwards. Published lost person behaviour data, collected from many real searches, shows that different groups behave differently: a walker, a child and a person with dementia tend to travel different distances and choose different places. Use it to rank areas, and do not use it to rule any out.

Divide the area into sectors a team can finish in a few hours, and use boundaries that people can see on the ground: roads, streams, forest tracks, field edges. When a sector ends at an imaginary line, every team stops somewhere different.

Give each sector one owner and one method, and record when it was searched, by whom, how thoroughly and in what conditions, since a sector covered at night in heavy rain counts for less than one covered in daylight.

• Hasty search: small, fast teams check paths, buildings, water and likely spots first.
• Containment: watch the roads, bridges and trails the person would have to use to leave the area.
• Area search: systematic search of a sector, in a line or by dog teams, after the hasty phase.
• Clue search: a find narrows the area, so re-plan around it rather than carrying on as before.
• Coverage record: tracks or marked maps showing what was really covered, kept for the next shift.

Losing a searcher only makes the situation worse. Before dark, decide which teams continue and with what: head torches, spare batteries, reflective clothing, a radio per team. Water, rocks, quarries and steep ground at night are for trained teams only.

Cold and rain shorten the time a missing person can survive outside, which argues for continuing; they also make searchers slower and less careful, which argues for fewer, better-equipped teams. That trade-off belongs to the person leading the search, and it should be written down with the reasons.

Sinkaos holds the shared map, sectors, tasks, searchers’ tracks and finds in one record that works on phones without signal, so a coordinator can see what has really been covered. It sits beside the police lead and the radio; it does not run the search. See Sinkaos for search and rescue.