It is regulated under chapter IX, that grants the court the ability to hear cases relating to constitutional law, as well as the ability to hear appeals from the magistrates' courts.

In chapter IX, decisions of the ABHC may be appealed to the Court of Appeal in the ECSC.The justices of the high court for Antigua and Barbuda are assigned to the country by the Judicial and Legal Services Commission (JLSC) of the OECS.

[3][4] Any person in Antigua and Barbuda may bring a case to the High Court if they believe the Constitution is being or has been contravened.

In Antigua and Barbuda, the registrar performs the functions required for the conduct and discharge of the court, and is ex officio an admiralty marshal, a provost marshal, and has custody of the seal of the High Court as well custody of the seal of the sub-registry of the ECSC Court of Appeal in Antigua and Barbuda.

[8] This article incorporates public domain material from the Government of Antigua and Barbuda.