¶1delivered the opinion of the Court:
¶2Whether the facts proven in an action for malicious prosecution constitute probable cause for commencing a criminal proceeding against a party charged, has always been regarded as a question of law. Wade v. Walden. 23 Ill. 425. Of course it is for the jury to find the facts in any given case, but when once ascertained, it is a matter of law whether such facts constitute probable cause for instituting a criminal prosecution. Probable cause, as understood in this connection, has been so often defined in the decisions of this court, that we need not repeat the definitions. Ross v. Innis, 26 Ill. 259; Ames v. Snider, 69 Ill. 376.
¶3What was said in Collins v. Hayte, 50 Ill. 353, upon the difficulty experienced by juries in comprehending the law that should govern trials for malicious prosecutions, applies with great force to the case at bar. That plaintiff was not guilty of the charge preferred against him by defendant, is proven beyond doubt, but that, of itself, is not sufficient to justify a verdict in his favor. It was incumbent on him to show affirmatively defendant had no “ probable cause ” for commencing a criminal prosecution against him. The testimony found in this record leaves this question in grave doubt. Of one thing there can be no doubt: if defendant was in possession of the information he professes to have had, believed it was true, and acted in good faith upon such belief, then we can pronounce upon it, as a matter of law, there was probable cause for commencing criminal proceedings against plaintiff, notwithstanding it was afterwards shown he was not guilty. The woman that was in charge of defendant’s house when the hay stacks were set on fire, afterwards pointed out two men as the guilty parties, and defendant’s daughter, who was with her, knew one of them to be plaintiff. That information was communicated to defendant before he caused the arrest of plaintiff.
¶4Good faith on the part of the prosecution, as this court declared in Oollins v. Hayte, is always an important if not vital element of inquiry, and if that belief is induced by facts and circumstances sufficient to raise a suspicion of guilt in the mind of a reasonably cautious person, it is a justification for commencing a criminal prosecution. On this subject defendant asked an instruction, which states the law with sufficient accuracy, and ought to have been given. Such an instruction was especially necessary, in view of the fact the court had given a charge, on behalf of plaintiff, declaring that “ mere good faith ” or a “ mere belief” of defendant that he had good cause for commencing criminal proceedings against plaintiff, was not sufficient. A qualification of that doctrine was necessary to give a full understanding of the law applicable to the facts of the case.
¶5Another charge given on behalf of plaintiff, as to the right of the jury to disbelieve the testimony of any witness who had sworn to any material fact “ wilfully and falsely,” unless " coiroborated by other unimpeached witnesses,” is subject to a verbal criticism, as well as being faulty because of the omission to give an important qualification to the doctrine stated. It should have been added. “ or by circumstances in evidence.” Without that qualification it was erroneous. Huddle v. Martin, 54 Ill. 258.
¶6The judgment will be reversed and the cause remanded.
¶7Judgment reversed.