Reading the MA 707 there seems to be a distinction made between staff carrying out continuing airworthiness management and those carrying out airworthiness reviews for issue of an ARC.
The GSAC guide I mentioned in an earlier post is more specific. Giving examples of a combined CAMO / Maintenance Organisation set-up, where the Cessna supervisor is required to do airworthiness examinations on Robin aircraft, and vice versa for the Robin supervisor. The general principle of the inspector of the paperwork being different to the person who did the servicing still holds.
If only it was all written in plane! English. God knows how people whose native language is not French or English get on with part M
