The Director General of the Army Legal Services (DGALS) is responsible for providing:

• Legal advice to the Army chain of command
• Legal training for the Army on operations and operational legal support in theatre
• Army prosecutors for the Tri-Service Prosecuting Authority
• Personal legal advice service for soldiers and their families when deployed overseas.

The Army Legal Services Branch of the Adjutant General's Corps is a specialist all-Officer Branch, who are professionally qualified as solicitors, barristers or Scottish advocates before joining. The role of the ALS is the provision of legal support to the Army.

The ALS is commanded by a Major General - Director General Army Legal Services (DGALS), who is supported by 3 Brigadiers: 

• Director Legal Advisory
• Brigadier Operational Law
• Deputy Director Service Prosecutions

Remaining ALS Officer ranks range from Captain to Colonel. Currently there are: 

• 10 Colonels
• 39 Lieutenant Colonels
• 42 Majors
• 30 Captains