Under the Georgia constitution, the state privilege against self-incrimination prevents the state from using refusal to submit to a BAC test against the accused in a DUI trial. Elliott v. State, 2019 Ga. LEXIS 112 (Feb, 18, 2019).
This search boils down to a credibility contest between defense witnesses and the officers over a consent, and the court details several reasons why credibility was lacking on the defense witnesses because of inconsistencies in their testimony about critical things. United States v. McElroy, 2019 U.S. Dist. LEXIS 25488 (N.D. Ala. Feb. 18, 2019).*