Wikipedia entry: Loaded question.
Aside from being an informal fallacy depending on usage, such questions may be used as a rhetoricaltool: the question attempts to limit direct replies to be those that serve the questioner’s agenda.
President Bill Clinton, the moderator in a town meeting discussing the topic “Race In America”, in response to a participant argument that the issue was not affirmative action but “racial preferences” asked the participant a loaded question: “Do you favor the United States Army abolishing the affirmative-action program that produced Colin Powell? Yes or no?” 
By a complex question, in the broadest meaning of that term, is meant one that suggests its own answer. Any question, for instance, that forces us to select, and assert in our answer to it, one of the elements of the question itself, while some other possibility is really open, is complex in the sense in which that term is here employed. If, for example, one were to ask whether you were going to New York or London, or if your favourite colour were red or blue, or if you had given up a particular bad habit, he would be guilty of the fallacy of the complex question, if, in each case, the alternatives, as a matter of fact, were more numerous than, or were in any way different from, those stated in the question. Any leading question which complicates an issue by over simplification is fallacious for the same reason.
Yes/no or forced choice questions like “is this yellow or green?” force people to choose between two choices when the answer could be neither of the choices or needs more explanation. This generates more “interviewer-talks” moments, where the interviewer is talking and controlling most of the interview. This type of question is also known as a false dilemma.
Professionals at risk for using suggestive questions
Interrogators and police
Unethical or unskilled police officers can use suggestive questioning in interrogation rooms. Such interrogators use different kinds of techniques and questions in order to get people to confess. They use response framing when getting people to falsely confess. This is when they purposely limit certain answers and suggest others.
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