Consulate
People who work in any sort of consulates are called consular officers.  The person in charge is called a consul, or consul general.  An honorary consul does not work full-time for the government.  They are usually in port towns, to speed up issuing documents for trade.  An honorary consul might be a citizen of the country they work for, have another link such as parents or grandparents, or they may have married someone from there.  They usually work in an office, which is considered an honorary consulate.