3 Jurisdiction of Tribunal and crimes
(1) A Tribunal shall have the power to try and punish any individual or group of individuals, or organisation, or any member of any armed, defence or auxiliary forces, irrespective of his nationality, who commits or has committed, in the territory of Bangladesh, whether before or after the commencement of this Act, any of the crimes mentioned in sub-section (2).
Jurisdiction
Jurisdiction ratione temporis
Protective jurisdiction
Universal jurisdiction
Non-retroactivity
Territorial jurisdiction - national proceedings
EDIT.