McGhee and Harrington sued, saying that as prosecutors Richter and Hrvol had them arrested without probable cause, coerced and coached witnesses, fabricated evidence against them and concealed evidence that could have cleared them. They claimed authorities were eager to charge someone and that they were targeted because they are black.

...The high court was to decide whether that immunity stretched to the prosecutorial work that happens before the trial begins. Lower courts had said that it did not and had rejected the prosecutors' request to dismiss the lawsuits.

The actual question to be decided:

Whether a prosecutor may be subjected to a civil trial and potential damages for a wrongful conviction and incarceration where the prosecutor allegedly violated a criminal defendant’s “substantive due process” rights by procuring false testimony during the criminal investigation, and then introduced that same testimony against the criminal defendant at trial.