I have an inspector coming over to sign off on the grounding job that I'm
having done. One question, when the inspector is present, is it his duty or
job to also spot other non-code or hazardous within the structure - outside
of what is being worked on?

My house undoubtedly contains numerous out of code conditions, all of which
are work in progress for me. So when he/she/it shows up can I expect him to
reserve his comments for the job at hand or will he walk about pointing out
things that need to be fixed elsewhere?