The reason why a Just and Holy God can completely wipe the slate clean of ALL your sins and remove all the evidence is because someone else ALREADY PAID THE PRICE for you!
Jesus died on the cross IN YOUR PLACE! He was SUBSTITUTED for you!
He took your place, and the judgment for your sins fell on Him!
That’s why you can be declared INNOCENT! That's why there is no evidence to convict you. Someone else already paid the price in your place.
This is the doctrine of Substitution!
The Bible says, "For Christ also hath once suffered for sins, the just for the unjust, that he might bring us to God." 1st Peter 3:18 [Bold Type Mine]