Answer :

The group that works to get pardons for past offences, mostly in cases of  political or unjust sentences or trials is the first one: Amnesty International.

International Red Cross on the other hand provides humanitarian protection, such as medical help.
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Amnesty International is the group that works to help get pardons for past offenses.  Amnesty International refers to a global movement made up of more than sevel million people who take injustice personally. They campaign across the entire world seeking to achieve the fulfilment of human righst for all.