Principle 29:
Accountability

Everyone whose human rights, including rights addressed in these Principles, are violated is entitled to have those directly or indirectly responsible for the violation, whether they are government officials or not, held accountable for their actions in a manner that is proportionate to the seriousness of the violation. There should be no impunity for perpetrators of human rights violations related to sexual orientation or gender identity.
 
States shall:

a) Establish appropriate, accessible and effective criminal, civil, administrative and other procedures, as well as monitoring mechanisms, to ensure the accountability of perpetrators for human rights violations related to sexual orientation or gender identity;

b) Ensure that all allegations of crimes perpetrated on the basis of the actual or perceived sexual orientation or gender identity of the victim, including such crimes described in these Principles, are investigated promptly and thoroughly, and that, where appropriate evidence is found, those responsible are prosecuted, tried and duly punished;

c) Establish independent and effective institutions and procedures to monitor the formulation and enforcement of laws and policies to ensure the elimination of discrimination on the basis of sexual orientation or gender identity;

d) Remove any obstacles preventing persons responsible for human rights violations based on sexual orientation or gender identity from being held accountable.