CPS and the AAIB
If the CPS expects a file to be submitted to it by the police, it can inform the AAIB of its interest in an investigation.
If so notified the AAIB makes available to the CPS a pre publication copy of the report.
Subject to consultation requirements the AAIB has a duty to publish its reports as soon as they are finalised. This means the CPS will get a copy only a few days before publication.
The CPS may comment on the report and also the timing of its publication in relation to any relevant criminal trial or any aspect of the report the CPS believes may prejudice the criminal proceedings.
The AAIB is obliged to consider the comments of the CPS but is not obliged to take any action as a result.