Applicable to insurance inspectors and/or safety engineers; a[[raisers of fire companies engaged in estimating the salvage value of property, including the amount of damage caused by fire; and employments of a similar character. Also includes insureds that perform in depth or hazardous physical inspections of property. Also includes insureds that investigate the credit, character, health, and habits of applicants through banks and personal contact for purpose of information to insurance companies, credit agencies.