As auditor, you could not test the compliance work since you would be testing yourself. Someone independent of the compliance function should audit it.
If it is a multi-auditor shop, and another auditor could test it independently, then it might be worth a try. If the testing auditor was not familiar enough with compliance to be independent(or reported to the compliance officer), then independence would be compromised and you would need an external audit.
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Integrity. With it, nothing else matters. Without it, nothing else matters.