The Judicial Appointments and Conduct Ombudsman (JACO) is a UK government organisation that provides an independent review of complaints about the conduct of judicial office holders and the judicial appointments process.
JACO works with the Ministry of Justice and can look into complaints about how investigating bodies have handled allegations of misconduct by judicial office holders, as well as complaints about the judicial appointments process1.
Here’s what JACO does:-
Judicial Conduct Complaints
If someone is not satisfied with how a complaint about a judge, magistrate, tribunal member, or coroner was handled, they can apply to JACO. The complaint must have already been considered by the Judicial Conduct Investigations Office, tribunal president, or magistrates’ advisory committee.
For judicial conduct investigations process complaints, the JACO are responsible for:
- considering complaints about the judicial conduct investigations process
- asking the Judicial Conduct Investigations Office, a tribunal president, or magistrates’ advisory committee to re-investigate a complaint where appropriate
- recommending changes to procedure in order to prevent the same issue from happening again
- proposing that compensation be paid if we believe that a complainant has suffered because of maladministration
JACO Judicial Conduct Complaint Form
Complete the JACO judicial conduct complaint form to ask the Judicial Appointments and Conduct Ombudsman to look into the handling of a complaint about judicial conduct.
Judicial Appointment Complaints
JACO also looks at how complaints about the judicial appointments process are handled.
For judicial appointment complaints, the JACO are responsible for:
- considering complaints about the judicial appointment process
- making suggestions to the Lord Chancellor and the Judicial Appointments Commission (JAC) on how to proceed when a complaint has been upheld
- recommending changes to procedure in order to prevent the same issues from happening again
JACO Judicial Appointment Complaint Form
Complete the JACO judicial appointment complaint form to ask the Judicial Appointments and Conduct Ombudsman to look into the handling of a complaint about judicial appointment.
Judicial Appointments and Conduct Ombudsman
The current Judicial Appointments and Conduct Ombudsman is Douglas Marshall. If you need to contact JACO, their email address is headofoffice@judicialombudsman.gov.uk
Office of the Judicial Appointments and Conduct Ombudsman
Postal Point 1.55
1st Floor, the Tower
102 petty France
London
SW1H 9AJ
United Kingdom
JACO Important Information
It’s important to note that JACO cannot help with a court or tribunal case, investigate a judicial office holder, or say whether their actions amount to misconduct. They also cannot reopen a court or tribunal case, review a judge’s decision, reprimand the office holder, remove them from office, or force anyone to pay compensation. However, they can recommend an apology, compensation for any loss suffered, or changes to the judicial complaint process.
JACO Decisions
The ombudsman’s decision is final and cannot be appealed against. For more detailed information, you can visit the official JACO website.
Check out our articles on HHJ Farquhar, HHJ Bedford and the highly questionable Sussex Family Justice Board.






The Ministry of Injustice is not the Ministry of Justice nor is it affiliated in any way with the justice system, legal profession or any law enforcement agencies.
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Judicial Appointments and Conduct Ombudsman (JACO) was last updated on the 29th April 2025