Moore v. Arizona
The Supreme Court threw out an Arizona ruling that had required a prison inmate to prove his defense was actually damaged before he could win a speedy-trial claim, holding that the state court misread the Court's own precedent.
The Court sent the case back to Arizona to weigh the man's nearly three-year wait for trial under the correct multi-factor test, which does not demand proof of trial prejudice as a threshold requirement.
How it got here: The Arizona Supreme Court affirmed denial of his state habeas petition, and he sought review directly from the U.S. Supreme Court.
The Case in Depth
What happened
A man was charged with murder in Arizona but was serving a prison sentence in California at the time. He repeatedly asked Arizona to either extradite him for trial or drop the charge, but nearly three years passed before he was tried. He argued in a state habeas petition that the long delay violated his constitutional right to a speedy trial.
The question before the Court
Did Arizona's courts wrongly require a man to prove his defense was actually harmed before they would find his speedy-trial right violated?
Why it matters
People awaiting trial while already incarcerated elsewhere, or held on pending charges, cannot be denied a speedy-trial claim just because they can't show their defense was specifically hurt. The ruling reminds state courts that delay itself — anxiety, disrupted rehabilitation and parole prospects, and lost liberty — counts toward a speedy-trial violation.
What changes now
The case returns to the Arizona Supreme Court, which must reassess the speedy-trial claim using the correct balancing test rather than requiring proof of trial prejudice. This is not a final resolution of whether the man's rights were violated — that determination is left for Arizona courts to make under the proper standard, so further proceedings are expected.
What this does not decide
The Court did not decide whether the delay actually violated the man's speedy-trial rights. It only held that Arizona used the wrong legal standard, leaving the ultimate balancing of the delay's reasons and effects to be redone by the Arizona Supreme Court.
How the Court got there
The legal reasoning, step by step
- The Court explained that under its earlier speedy-trial precedent, judges must weigh four factors together — how long the delay was, why it happened, whether the defendant demanded a trial, and whether he was harmed by the wait — with none of them required on its own.
- Because the Arizona court had instead treated proof of harm to the defense at trial as an essential, stand-alone requirement, the Court found it had fundamentally misread the governing standard.
- The Court explained that harm from delay is not limited to damage to the trial defense itself; it also includes the anxiety, disrupted family and work life, and lost liberty that come from prolonged, unresolved charges.
- The Court added that for someone already imprisoned elsewhere, an unresolved charge can also hurt chances for parole and rehabilitation, a consideration the Arizona courts had not weighed.
- Given the State's own concession that the delay presented a close call, the Court concluded the case needed to be reconsidered under the correct, properly balanced standard rather than the flawed one Arizona had used.
Doctrinal impact
Cases affected by this decision
Reaffirms Barker v. Wingo (407 U. S. 514)
The Court reaffirmed Barker's balancing test, correcting Arizona's mistaken reading that required proof of trial prejudice.