Although Leung apologised and restated his negligence, his claim was widely doubted as he was a professional surveyor.

It is typically the last step in the process of becoming a licensed professional surveyor.

Prior to elected office, he worked as a professional surveyor.

Would a professional surveyor?

He was a professional surveyor, not a clairvoyant.

All men were professional surveyors or draftsman.

George R. Carey was a professional surveyor employed by the City of Boston.

Ultimately, when the professional surveyors have taken their fees and returned to their offices, the success (or failure) of the practice will depend on these factors.

Then, from 1908, he was a professional surveyor and surveyed many regions of British Columbia.

Simplified Roman techniques then seem to have co-existed with more sophisticated techniques used by professional surveyors.