Child Safety for Police Officers and PCSOs
Operational reference for officers attending child safeguarding incidents. Section 47 versus Section 17, MERLIN, MASH, and joint investigation with social care.
As a police officer or PCSO, you are part of the statutory child protection framework whether you wear a safeguarding lanyard or not. Every contact with a child or family is potentially a safeguarding contact. This guide is an operational reference for the decision points you face on shift: whether to use Section 47 powers of investigation versus Section 17 voluntary support, when to submit a MERLIN, and how to work alongside Children's Services in a joint investigation. It is written for response officers and PCSOs, not specialist safeguarding teams.
Why this matters
Police are often the first responders to incidents where a child is at risk — domestic abuse callouts, missing-person reports, online exploitation disclosures, and concerns raised by neighbours. The information you capture and share at the scene shapes every subsequent decision by social care and the courts. A thorough MERLIN, a clear contemporaneous note, and a prompt strategy discussion can be the difference between protection and harm.
Quick wins
Refresh your knowledge of MERLIN submission requirements at your next briefing
Time: 15 minutes
Save the local MASH telephone number and out-of-hours route in your work phone
Time: 5 minutes
Review your force's policy on attending domestic abuse callouts where children are present
Time: 30 minutes
Common challenges
Deciding between a Section 47 investigation and a Section 17 supportive referral
Section 47 of the Children Act 1989 applies where you have reasonable cause to suspect a child is suffering or likely to suffer significant harm. Section 17 applies where a child is in need but the threshold for significant harm is not met. The decision is made jointly with Children's Services at the strategy discussion. When in doubt, refer to the higher threshold; the strategy discussion will calibrate.
Capturing usable evidence at the scene without retraumatising a child
Use Achieving Best Evidence (ABE) principles: do not lead, do not press for detail beyond initial account, do not interview formally without ABE-trained colleague and social work joint planning. Note exactly what the child said, when, and to whom, in their own words. Body-worn video captures context but cannot replace careful note-taking.
Working with Children's Services where local relationships are strained
Hold the focus on the child. Escalate disagreement through your supervisor and their team manager rather than at scene. Where police and social care cannot agree on the threshold or the plan, the local resolution of professional disagreement procedure applies. Document the disagreement and the route taken to resolve it.