The officer who interviews the visa applicant will usually speak and understand the most common local language. If not, another officer or a local conemployee will probably be able to translate. If the language is obscure enough, the conofficer might still find, somewhere in the embassy/consulate, an employee who has it.I remember an instance when the only employee who spoke both the primary local language and the very rare language of the visa applicant was one of the oldest, shyest, most reticent, lowest-level gardeners. He was so proud of the officersu2023 need of and appreciation for that rare skill that one time, that he began to dress better, stand straighter, feel and act more confident, and volunteer for and learn from special, complicated jobs. He eventually earned a permanent promotion to head gardener and did an excellent job at it.