According to the Supreme Court opinion in Schneckloth v. Bustamonte, involving a search of a car obtained by consent:
I. the question of whether consent was voluntary is a question of fact to be determined by the totality of all the circumstances.
II. the government need not prove that citizens know they have a right to refuse consent.
III. probable cause is required to conduct consent searches.
IV. consent searches can only be conducted if it is inconvenient to get a warrant.

Question

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The Supreme Court in Schneckloth v. Bustamonte held that the voluntariness of consent is determined by the totality of circumstances and that the government does not need to prove that individuals knew they could refuse consent.

According to the Supreme Court Opinion in Schneckloth V