Courtesy of FourthAmendment.com here is a good case to know about.
Defendant and his wife got into a domestic dispute, and she called the police to tell them about his illegal firearms. They came to the scene and she consented to the search. He was there and vociferously objected. The police searched anyway. The search violated Randolph. Moreover, the defendant’s objections put the police on notice that she probably did not have apparent authority to consent. United States v. Tatman, 2010 U.S. App. LEXIS 19220, 2010 FED App. 0604N (6th Cir. September 13, 2010) (unpublished).