Humphreys collecting data for the tearoom trade study under the pretense that he was a lookout is an example of a violation of the principle of

By doing so, Humphrey is deliberately violating the principle of Respect for person's Belmont Report. The report, which was actually signed as a law protects the human beings from being subjects of research may it be medical or behavioral. Guidelines should be shared with the subjects to ensure that they are fully aware of the research being conducted.