Guidance for Supervisors
Major Investigation and Public Protection — Authorised Professional Practice
Summary
This guidance provides essential information for supervisors in handling incidents of modern slavery and human trafficking (MSHT). It emphasizes the critical role of supervisors in ensuring that investigations are thorough and effectively managed by teams with suitable expertise. Supervisors are tasked with adhering to statutory obligations for safeguarding both children and vulnerable adults. Key aspects include ensuring that investigators are appropriately accredited, allocated cases respectfully, and receive the necessary support, including victim care. The guidance underlines the importance of establishing communication with relevant partners prior to investigations and ensuring victim strategies are aligned with existing codes for victim treatment.
Key principles
- 1Ensure incidents of MSHT are thoroughly investigated by skilled teams.
- 2Comply with statutory obligations for safeguarding vulnerable individuals.
- 3Allocate MSHT investigations to appropriately accredited investigators.
- 4Implement and review an investigative strategy for MSHT cases.
- 5Provide support and guidance to investigators throughout the process.
- 6Establish and maintain partnerships for effective response and prevention.
Defined terms
- MSHT
- Modern Slavery and Human Trafficking
- PIP2
- Professionalising Investigation Programme Level 2
- SPOC
- Single Point of Contact
- Victims’ Code
- Code of practice for victims of crime in England and Wales.
This is a brief, factual summary. The full APP guidance — including operational detail, statutory references and case studies — lives on the College of Policing website. APP is the authoritative source for UK policing practice.
Read the full APP guidanceSource: College of Policing — Authorised Professional Practice · Crown copyright, licensed under Open Government Licence v3.0. Summary fetched 2026-06-27.