South Dakota v. Neville
The Court ruled that using a drunk-driving suspect's refusal to take a blood-alcohol test as evidence against him at trial does not violate his Fifth Amendment right against self-incrimination.
The decision resolves a question the Court had left open in a 1966 case, and it lets states like South Dakota keep laws that penalize refusal both by revoking a driver's license and by letting juries hear about the refusal.
“We hold, therefore, that a refusal to take a blood-alcohol test, after a police officer has lawfully requested it, is not an act coerced by the officer, and thus is not protected by the privilege against self-incrimination.”
The Court's core holding on why refusal evidence does not violate the Fifth Amendment.
How it got here: A South Dakota trial court suppressed the refusal evidence; the South Dakota Supreme Court affirmed, and the State asked the U.S. Supreme Court to review the federal constitutional ruling.
The Case in Depth
What happened
South Dakota police stopped a driver for running a stop sign, noticed signs of intoxication, and arrested him for driving while intoxicated. After being read his Miranda rights, he repeatedly refused a blood-alcohol test, saying he was too drunk to pass it. South Dakota law allowed prosecutors to use that refusal as evidence of guilt at trial, and the driver sought to suppress it.
The question before the Court
Can a state let prosecutors tell a jury that a suspected drunk driver refused to take a blood-alcohol test, without violating his right against self-incrimination?
The Court's answer
No — the Court held that letting prosecutors use a suspect's refusal to take a blood-alcohol test as evidence of guilt does not violate the Fifth Amendment right against self-incrimination. The key reasoning is that the Fifth Amendment only bars the government from directly coercing someone into incriminating himself, and here the state gave the driver a genuine choice: take the test, or refuse and have that refusal used against him along with losing his license. Because the blood test itself was something the state could have forced him to take without violating his rights, offering him the additional option of refusing (with consequences) did not amount to unconstitutional coercion.
The Court also rejected the argument that using the refusal was fundamentally unfair to a suspect who wasn't specifically warned it could be used at trial, distinguishing this from cases where the government misleadingly implies silence carries no cost.
Curious how the Court got there? See the step-by-step legal reasoning →
Why it matters
Police and prosecutors nationwide can continue offering suspected drunk drivers a choice between taking a blood-alcohol test or having their refusal used against them in court, without running afoul of the Constitution. States can keep implied-consent laws that penalize refusal with both license revocation and evidentiary use, giving them a stronger tool against drunk driving.
What changes now
The case is sent back to South Dakota courts for further proceedings consistent with the ruling, meaning the refusal evidence can now be used against the driver at trial. This is a final merits decision on the federal constitutional question, though the South Dakota Supreme Court still must resolve a separate question about whether the driver's statements were voluntarily made after waiving his right to remain silent.
What this does not decide
The Court did not decide whether a state could force a suspect to take a blood test using physical force, or whether refusal evidence could be used if the choice offered were somehow more coercive (for example, if the alternative test were painful or dangerous). It also left open harder questions about ambiguous or partial refusals.
Concurrences and dissents
How the Justices voted
Majority (1). Justice Connor (author).
Dissent (1). Justice Stevens (author).
Dissent — Justice Stevens
“Because there exists an independent and adequate state ground for the judgment below, I would dismiss the writ of certiorari.”Stevens's argument that the Court lacked power to decide the federal question at all.
Justice Stevens argued the Court had no power to decide the case at all, because the South Dakota Supreme Court's ruling rested on an independent and adequate state constitutional ground — it held the refusal-evidence law violated both the state and federal privilege against self-incrimination. Since the state court never suggested its state-law holding depended on the federal question, Stevens argued any decision here would be a forbidden advisory opinion, and he would have dismissed the case entirely. Read the full dissent →
How the Court got there
The legal reasoning, step by step
- The Court asked whether the Fifth Amendment's protection against self-incrimination, which bars the government from compelling a person to give testimony against himself, is violated when a refusal to take a blood-alcohol test is used as evidence of guilt.
- Rather than deciding the case on whether a refusal counts as 'testimony' versus mere physical conduct, the Court focused on whether the refusal was 'compelled' at all, since the Fifth Amendment only prohibits compelled self-incrimination, not any use of a person's own choices against him.
- Because a state can lawfully force a suspect to take a blood test outright without violating the Constitution, offering the suspect the added option of refusing — with the tradeoff of license revocation and evidentiary use — is not the kind of coercion the Fifth Amendment forbids; it is simply a choice between two legitimate consequences.
- The Court distinguished this from the 'cruel trilemma' that arises when a defendant is forced to choose between self-accusation, perjury, or contempt, explaining that no such impermissible dilemma exists when refusing a blood test carries lawful, disclosed penalties rather than punishment for silence itself.
- Turning to due process, the Court applied the fairness principle from a prior case barring the use of post-arrest silence to impeach a defendant who was implicitly assured his silence would not be held against him, and found that principle inapplicable because the officers' warnings here did not create any such implicit assurance — they told the suspect refusal could cost him his license.
- The Court concluded that failing to specifically warn the suspect that refusal could also be used against him at trial did not amount to a misleading trap, since the warnings already made clear that refusing was not a consequence-free option.
Doctrinal impact
Cases affected by this decision
Reaffirms Schmerber v. California (384 U. S. 757)
Relies on and extends this 1966 ruling, resolving a question it had explicitly left open about refusal evidence.
Distinguishes Doyle v. Ohio (426 U. S. 610)
Says this case's unfairness rule against using post-Miranda silence to impeach does not apply to blood-test refusal warnings.