The Secretary for Justice heads the Department of Justice and is the Chief Executive's legal adviser and a member of the Executive Council. The Secretary for Justice chairs the Law Reform Commission and the Legal Practitioners' Liaison Committee, is the Deputy Chairman of the Fight Crime Committee and is a member of the Judicial Officers Recommendation Commission and the Operations Review Committee of the Independent Commission Against Corruption.

The Secretary for Justice is the representative of the HKSAR Government in all actions brought by or against it and is also responsible for the drafting of all government legislation.

The Secretary for Justice is responsible for all prosecutions in the HKSAR, with responsibility for deciding whether a prosecution should be instituted in any particular case, and, if so, for instituting and conducting the prosecution.

The Department of Justice provides legal advice to all government departments and bureaux. The department consists of the Secretary for Justice's Office and five law divisions, each headed by a Law Officer to whom the Secretary for Justice delegates certain powers and responsibilities. The Secretary for Justice's Office provides legal and administrative support in respect of the Secretary for Justice's many functions.

The Civil Division, headed by the Law Officer (Civil Law), provides legal advice to the Government on civil law, drafts commercial contracts and franchises and conducts civil litigation, arbitration and mediation on behalf of the Government. The division also provides counsel to the Market Misconduct Tribunal.

The International Law Division, headed by the Law Officer (International Law), advises the Government on issues relating to public international law. Lawyers in this division also participate in the negotiation of agreements and arrangements with other jurisdictions and, as members of the Chinese delegation, at the Hague Conference on Private International Law. The division also handles requests to and from the HKSAR for international legal cooperation.

The Law Drafting Division, headed by the Law Draftsman, is responsible for drafting all legislation, including subsidiary legislation, in Chinese and English, and assists in steering legislation through the Executive and Legislative Councils. It is also responsible for compiling the loose-leaf edition of the Laws of Hong Kong and for maintaining the computer database of Hong Kong's legislation known as the Bilingual Laws Information System (BLIS), which is freely available on the Internet.

The Solicitor General heads the Legal Policy Division, which includes the Law Reform Commission Secretariat. The division provides legal input — with emphasis on legal policy values — on a wide variety of topics being considered by the Government and also advises on issues affecting the administration of justice, human rights, constitutional law, China law and the Basic Law.

The Prosecutions Division is headed by the Director of Public Prosecutions. Counsel from this division conduct most criminal appeals, including those to the Court of Final Appeal. They also conduct the majority of trials in the Court of First Instance and the District Court and, when necessary, they prosecute in the Magistrates' Courts. The division also provides legal advice to law enforcement agencies and other government departments.