Rome Statute of the International Criminal Court (Article 68)
Protection of the victims and witnesses and their participation in the proceedings
1. The Court shall take appropriate measures to protect the safety, physical and psychological well-being, dignity and privacy of victims and witnesses. In so doing, the Court shall have regard to all relevant factors, including age, gender as defined in article 7, paragraph 3, and health, and the nature of the crime, in particular, but not limited to, where the crime involves sexual or gender violence or violence against children.
https://www.jus.uio.no/english/services/library/treaties/04/4-06/icc_statute.xml
Additional Protocol I to the Geneva Conventions of 1949 (Article 91)
A Party to the conflict which violates the provisions of the Conventions or of this Protocol shall, if the case demands, be liable to pay compensation. It shall be responsible for all acts committed by persons forming part of its armed forces.
https://www.icrc.org/eng/assets/files/other/icrc_002_0321.pdf
Convention against Torture and Other Cruel, Inhuman or Degrading Treatment or Punishment (Article 14)
Each State party shall ensure to victims of torture an enforceable right to fair and adequate compensation (article 14).
http://legal.un.org/avl/pdf/ha/catcidtp/catcidtp_e.pdf
Universal Declaration of Human Rights
Everyone has the right to an effective remedy by the competent national tribunals for acts violating the fundamental rights granted him by the constitution or by law.
http://www.un.org/en/universal-declaration-human-rights/