Re: A Question re "Trials and Tribble-ations"
Another question is why Worf was put on the away team. Even though they were unfamiliar with 23rd century Klingon's predominant appearance, they knew relations with the Empire were strained, and Klingon merchants were apparently uncommon near Federation territory. If they were trying to blend in, they could have put Worf in an old style Klingon uniform, which would have raised even more questions.
Dr. Howard, Dr. Fine, Dr. Howard: For duty and humanity! --Men in Black (1934)