In this case the evidence was very conflicting, and it might be said with propriety that a finding either way would not be disturbed if there was no error of law in the record. One of the witnesses called for the plaintiff failed to testify as plaintiff evidently expected he would, and though not very definite, his testimony on the whole was favorable to the defendant. At the instance of the defendant the court gave the following instruction:
“ When a party to a suit puts a witness on the stand he thereby vouches for said witness, and that said witness is worthy of belief, and the party placing said witness on the stand is not permitted afterward to deny that such witness is worthy of belief.”
The rule on the subject is laid down by Greenleaf, as follows: “ When a party offers a witness in proof of his cause he thereby in general represents him as worthy of belief. lie is presumed to know the character of the witnesses he adduces, and having thus presented them to the court the law will not permit the party afterward to impeach their general reputation for truth, or impugn their credibility by general evidence tending to show them to be unworthy of belief.” Sec. 442. ‘‘But it is exceedingly clear that the party calling the witness is not precluded from proving the truth of any particular fact, by any other competent testimony in direct contradiction to what said witness may have testified, and this not only where.it appears that the witness was innocently mistaken, but even where the evidence may collaterally have the effect of showing that he was generally unworthy of belief.” Sec. 443. And so the rule is understood in this State. Rockwood v. Poundstone, 38 Ill. 199; Tobin v. C. C. Ry. Co., 17 Ill. App. 82. While a party may not impeach the character of his own witness, he is not bound by his testimony, and may contradict him by other witnesses, even though the evidence so offered may collaterally have the effect of showing the witness is unworthy of credit.
This rule of law is rather for the guidance of the court in determining what evidence is admissible than for the information of the jury. *175Indeed it is difficult to see what occasion there would be to thus advise the jury in such a case as this, if in any case. No impeaching testimony was before the jury, but there was testimony in contradiction of the witness referred to, and the jury, when seeking to apply this instruction to the evidence, would naturally assume it was applicable to such contradictory proof. It must have had this effect if it had any. The last clause is at best somewhat ambiguous and inaccurate in saying that the party producing the witness “ is not permitted afterward to deny that such witness is worthy of belief.” In one way ho may, in a certain sense, deny the credibility of the witness, that is, by producing such an array of contradictory proof as to overwhelm and extinguish him.
It was error to give the instruction and we are of opinion that it manifestly tended to mislead the jury. The judgment will therefore be reversed and the cause remanded.
Reversed and remanded.