Opinion by
Rice, P. J.,The second, third and fourth assignments of error are criticised by appellee’s counsel as relating to the reasons given by the court for its action and therefore to matters not assignable for error. The fifth is also criticised as not being self-sustaining. These criticisms are well-founded. But the first and sixth assignments, while not in strict form, indicate the substantial question sought to be raised by the appeal, namely, whether the defendant was entitled to binding direction in his favor. That question will be considered.
1. The fundamental distinction between the injury of malicious prosecution and the injury of false imprisonment necessitates different rules of pleading and evidence. The action for the former, though, under the Act of May 25, 1887, P. L. 271, the same in name as the action for the latter, is essentially different from it. It presupposes a previous judicial proceeding and, ordinarily, its termination favorable to the defendant therein: 19 Cyc. of Law & Pro. 356. But to constitute the injury of false imprisonment the two requisites are: “1. The detention of the person; and, 2. The unlawfulness of such detention:” 3 Bl. Com., Lewis’s ed., 127. A previous judicial proceeding not being an essential *263element of the injury, obviously the rule applicable to malicious prosecution, that the termination of the proceeding is a condition precedent to the institution of an action for the injury, does not apply to a false imprisonment which, in fact, was not based on a judicial proceeding. .Therefore, the court was right in refusing to charge that the action was prematurely brought. This conclusion is amply vindicated by the well considered opinion rendered by Judge Hasslek in overruling defendant’s motion for judgment non obstante veredicto.
2. The defendant further bases his contention that the court ought to have given binding direction in his favor, upon the alleged facts, that he was a police officer acting under general orders of his superior to arrest anyone who attempted to peddle fruit or fish and blew a horn upon the streets of the city after ten o’clock at night; that shortly after this hour the plaintiff, a huckster, was notified by and promised the defendant to refrain from blowing his horn; that after he had passed from defendant’s view plaintiff or some one in his wagon blew the horn again; whereupon the defendant pursued and arrested him for disorderly conduct, and took him to the station house, where he was detained for a time. On the other hand, plaintiff testified that the notification was given a few minutes before ten o’clock, and that his horn was not blown afterwards. It is thus seen that, even if it be conceded that plaintiff’s blowing of the horn after notification and promise to refrain would have been justifiable cause for his arrest without warrant, and imprisonment, the question whether he committed the act was in dispute, and, therefore, it was the exclusive province of the jury to determine it.
It is argued that, although plaintiff did not commit the act, yet, if defendant had reasonable ground of suspicion supported by circumstances sufficient to warrant an ordinarily prudent man in believing he did, he had probable cause for arresting him and this would be *264a defense. The learned trial judge so charged the jury, but, under .the conflicting evidence as to the occurrences, he would not have been warranted in declaring, as matter of law, that probable cause was conclusively established. When one is arrested without warrant, for an offense of which he is innocent, the burden is cast on the person who made the arrest of proving that he had probable cause to make it: McCarthy v. DeArmit, 99 Pa. 63; McAleer v. Good, 216 Pa. 473. In general what constitutes probable cause is for the court to determine, and in some states of the evidence it is its duty to declare to the jury that it did or did not exist in the particular case: McCoy v. Kalbach, 242 Pa. 123. In many other conditions of the evidence it is a mixed question, partly for the court and partly for the jury, and this is often so where actual belief is one of the elements involved: Schofield v. Ferrers, 47 Pa. 194. The rule defining the province of the court and jury was thus stated by Judgé Henderson in Delany v. Lindsay, 46 Pa. Superior Ct. 26: “The essential element is such a reasonable ground of belief as would cause an ordinarily prudent man to act. Where there is no dispute in relation to the facts or doubt as to the inferences to be drawn therefrom it is for the court to determine whether they constitute probable cause, but where the evidence is contradictory or the facts admit of contrary inferences the jury must say under proper instructions whether there was probable cause.” The nature of the act and its consequences have something to do in the determination of the question whether the defendant had reasonable cause to do what he did. Whether a horn was blown after plaintiff passed into another street and out of defendant’s view, whether it was blown by plaintiff, and, if not, whether the direction from which The sound came was in itself such reasonable ground of belief that the plaintiff blew it as to justify the defendant in arresting him, were properly questions for the jury. No particular part of the charge is. as*265signed for error, and, therefore, the court’s instructions as to what is necessary to constitute probable cause are not before us for review. Upon the question, and the only question, that is fairly raised by the assignments the court was right in its conclusion.
The assignments of error are overruled and the judgment is affirmed.