however, the cops didn't smell anything. the fact pattern doesn't say this.
"In view of the Government's concession that Trooper Frock did not possess the reasonable suspicion necessary to detain Lattimore to permit the drug dog to sniff his automobile, if Lattimore had not already given a voluntary oral consent to the search, Trooper Frock's assertion that he would 'call a drug dog' to search the automobile if Lattimore refused written consent would raise serious questions concerning the voluntariness of his consent."
"When a prosecutor seeks to rely upon consent to justify the lawfulness of a search, he has the burden of proving that the consent was, in fact, freely and voluntarily given. This burden cannot be discharged by [391 U.S. 543, 549] showing no more than acquiescence to a claim of lawful authority. A search conducted in reliance upon a warrant cannot later be justified on the basis of consent if it turns out that the warrant was invalid. The result can be no different when it turns out that the State does not even attempt to rely upon the validity of the warrant, [391 U.S. 543, 550] or fails to show that there was, in fact, any warrant at all. When a law enforcement officer claims authority to search a home under a warrant, he announces in effect that the occupant has no right to resist the search. The situation is instinct with coercion - albeit colorably lawful coercion. Where there is coercion there cannot be consent."