A "free pardon" means that someone is completely forgiven for a crime they committed and will not face any punishment or consequences for it.
Sentences with «free pardon»
The Oxford English Dictionary defines forgiveness as «to grant free pardon and to give up all claim on account of an offense or debt.» (mindbodygreen.com)
Charizomai is God's free pardon (cf. 2 Cor 2:7, 10; Col 2:13). (redeeminggod.com)
This is another unique element, not only does God come down and reach out to man, but he gives him a free pardon of his crimes. (religion.blogs.cnn.com)