Stage 1 – Local resolution
Email the complaints team for the region that supervises you (list below). State “Stage 1 Complaint” in the subject line and include your full name, CRN and contact details. They have 20 working days to reply.

Stage 2 – Senior manager review
If unhappy, reply to the same address marked “Stage 2 Complaint” within 1 month. A deputy regional director responds within 20 working days.

Appeal
If still dissatisfied, email the same inbox headed “Appeal” within 1 month. A different senior manager will review and answer within 20 working days.

Prisons & Probation Ombudsman (PPO)
After completing the three steps you may write to mail@ppo.gov.uk or post to PPO, 10 South Colonnade, London E14 4PU within 3 months.

Regional complaint emails

Complaining about the National Probation Service

Police Complaints (fastest method)

Skip slow force “Professional Standards” mailboxes and use the Independent Office for Police Conduct (IOPC) online form. Although you are not complaining to the IOPC, they have a system where you can complain "through them". This avoids "lost emails" and mail that "never arrived".

Once you have applied this way Your complaint is routed instantly to the correct force and logged on the national system so it cannot be ignored.

Depending what you are complainig abaout, a Complaint normally takes 12-18 months.