Today's report by an independent misconduct panel has also raised concerns about the IPCC's handling of the Nick Gargan investigation.
Following the Chief Constables suspension in May 2014, the IPCC began an investigation but concluded that there were no grounds for criminal charges.
PCC Sue Mountstevens has issued the following statement:
I believe the IPCC acted with good intentions to protect and support witnesses and not betray the confidence of those that did come forward, but clearly the way they managed the process in this case has caused concern, as any failure to follow the disclosure process could have led to the proceedings being compromised or worse still collapsing.
The disclosure process needs to be reviewed by the IPCC so it is clearer for all concerned in future investigations and I will be writing to the IPCC Chair Dame Anne Owers to request this.
It has emerged that 24 out of 25 Avon and Somerset police superintendents voted 'no confidence' in Nick Gargan.
Today, the Chief Constable of Avon and Somerset Police, will learn his fate at a sanction hearing.
Three former Avon & Somerset Police Chief Constables have written to the Police and Crime Commissioner asking Nick Gargan to resign.