Policy paper

MoU between the AIBs and the NPCC

Memorandum of Understanding between the UK Accident Investigation Branches and the National Police Chiefs’ Council.


MOU between the AIBs and the NPCC

Request an accessible format.
If you use assistive technology (such as a screen reader) and need a version of this document in a more accessible format, please email enquiries@aaib.gov.uk. Please tell us what format you need. It will help us if you say what assistive technology you use.


This Memorandum of Understanding (MoU) is established between the Chief Inspectors of the United Kingdom Air, Marine and Rail Accident Investigation Branches (the AIBs), and the National Police Chiefs’ Council (NPCC). It does not consider relationships between the signatories and other parties, which may be the subject of other MoUs.

The aim of this MoU is to ensure effective investigation of transport accidents and any crimes associated with them, while maintaining the independence of those investigations and promoting effective cooperation between them.

Published 24 January 2019