delivered the opinion of the court.
The cause must be remanded to the Circuit Court for a new trial for errors in procedure, and therefore we do not find it necessary to consider or to express any opinion upon the merits of the cause.
The lease contained a provision for re-entry by appellant for condition broken and the removal of appellee, using such force as might be necessary in so doing, with or without process of law. The lease also provided that “the said party of the second part hereby waives his right to any notice from said party of the first part of its election to declare said lease at an end under any of its provisions, or any demand for the payment of rent or for the possession of the premises leased herein.”
Evidence was introduced by appellant tending to show a violation by appellee of the provision of the lease whereby appellee covenanted that he would not underlet said premises or any part thereof, or assign the lease without the written assent of appellant, and tending also to show a violation of the provision specifying the kind of merchandise which might be sold in the booth.
Appellant" requested an instruction which was refused by-the court as requested; but the court modified it and gave it to the .jury in the form below set forth, the italicized portion of the instruction being the modification or addition made by the court:
. “The court instructs the jury as a matter of law that if the jury believe from the evidence and under the instructions of this court that the plaintiff, Cirkle, violated the terms and conditions in the lease under which he occupied the premises in question undef the defendant, and if the jury further believe from the evidence that the defendant declared said term ended because- of such violations, then, by the terms of the lease the défendant had a right to remove the *386plaintiff or his employees and property, using such force as was necessary to do so, and the plaintiff cannot recover in this action. Before the defendant had a legal right to use force in putting the plaintiff out of the leased premises, the law and the lease required of the said defendant that he should, in a formal and distinct manner, declare tp the plaintiff that the term of his lease was ended.”
Appellant assigns error upon the giving of the instruction as modified, contending that the law and the lease did not require it to disclose to appellee in a formal and distinct manner that the term of this lease was ended.
“At the common law, whenever the right of entry existed the disseizee might lawfully regain the possession by force.” .1 Chitty’s Gen. Practice, 46. In Hyatt v. Woods, 4 John., 150, the court said: “If the entry in such case be with a strong hand a multitude of people, it is an offense for which the party entering must answer criminally.” Our statute of forcible entry and detainer took away the right from the landlord or person whose possession had been invaded to make a forcible entry, and gave a civil remedy to regain possession. Fabri v. Bryan et al., 80 Ill., 182. The question presented is whether a wrongdoer by contract may not waive the civil remedy provided by the statute and authorize a re-entry as at common law.
In Ambrose v. Boot, 11 Ill., 497, an agreement was before the court providing that in case of default in paying a certain installment of the purchase price of a certain mill property on a day named, the vendor Boot might “enter and take possession of said mill, using all the force necessary to obtain the actual possession thereof; and such entry shall not be regarded as a trespass, nor sued for as such, nor in anywise unlawful.” The court in upholding the agreement and the retaking of possession thereunder, at page 499, said:
“This was not an agreement to do an unlawful act. It cannot be supposed that the parties had it in contemplation at the time of executing the contract, that the plaintiff could wrongfully attempt to retain the possession, or that there would be any occasion to resort to force to put him out. *387The agreement was not made for the purpose of committing an illegal act, nor with a knowledge that one would be committed, and had the defendant complied with his obligation, as the law will presume was his intention at the time, none would have followed. * * * Under our statute of forcible entry and detainer, a party having by law a right of entry, has no authority to make such entry by force; but this statute provides a civil remedy which the wrongdoer in possession may at any time waive.”
This case was cited, followed and approved in Page el al. v. DePuy, 40 Ill., 506, where a lease containing a similar provision of re-entry and removal was before the court, and the re-entry and removal was justified upon the ground that it was authorized to be made, and the law does not prevent a person from giving such authority.
And again Fabri v. Bryan, supra, where the tenant held over, the court said where a similar licence to the landlord to the one contained in the lease in this case was before it, that an entry by the landlord unaccompanied by unnecessary force was lawful because sanctioned by the agreement of the parties.
It is clear, we think, under these authorities, that appellee could waive the civil remedy provided by the statute, and that by the lease pleaded by him and in evidence, he did waive it.
The particular vice in the instruction insisted upon by appellant is that the instruction states the law to be that “the law and the lease required of the said defendant that he should, in a formal and distinct manner, declare to the plaintiff that the term of this lease was ended,” before the appellant had the legal right to use force in putting appellee out of the leased premises.
The lease before us contained the following at the end of, and as a part of the provision under consideration:
“And the said party of the second part hereby waives his right to any notice from said party of the first part of its election to declare this lease at an end under any of its pro*388visions, or any demand, for the payment of rent or the possession of the premises leased herein.”
There was evidence before the jury of various acts in contravention of the conditions of the lease which would warrant the jury in finding that appellant was justified in forfeiting the lease. It is, beyond question, within the right and power of a tenant to waive his right to notice from his landlord of the election of the latter to declare his lease ended.
By the clause above quoted this declaration in a formal and distinct manner to appellee was waived. The language used in the lease is unambiguous and clear. The instruction as modified, in view of the provisions of the lease and the law, was therefore erroneous.
Furthermore, the right of appellant to re-enter, under the provisions of the lease, upon covenant broken, existed independently of an express forfeiture of the lease. Schaefer v. Silverstein, 46 Ill. App., 608. For this reason also the instruction was erroneous.
By the additional counts to his declaration appellee averred that the principal part of his business conducted in the leased premises was the sale of theatre tickets at a profit to the appellee. Evidence was offered by appellee, consisting of the books of account kept by him, to show the amount of net profits made by the business while he was in possession of the demised premises, and on behalf of appellee testimony was given to the effect that theatre tickets were sold in advance of the regular stamped or printed price at which ■ the theatres sold them to the general public.
Appellant offered in evidence, in mitigation of the damages thus shown by appellee, an ordinance of the city of Chicago adopted March 23, 16lh_4, prohibiting the sale of any theatre tickets at a higl'1'0, price than that printed thereon. The ordinance offeri'1 tended to show that the business of theatre ^ticket scalp: as conducted by appellee was rendered thereby illegal in C 3 city of Chicago after the date of its adoption, and would afford a fair basis for the jury to conclude that during the emainder of the term of the *389lease there would be a decrease in the business and the profits thereof.
The court excluded the ordinance on the ground that it was not pertinent to the issue; and also on the ground that the city council had no power to pass it.
We do not find that counsel for appellee question in their brief the validity of. the ordinance. They seek to justify the ruling of the court on other grounds. Counsel for appellee under the rule laid down in Chapman v. Kirby, 49 Ill., 211, showed the profits for a period preceding the time when the injury was inflicted. By the same authority appellant could show that by depression in trade or other causes the profits would be less after the ordinance was adopted. The illegality of the business after the adoption of the ordinance would have a direct tendency to cause a decrease in the business and the profits thereof, if not a complete cessation of the prohibited business. We think the ordinance was relevant and proper under the general issue in mitigation of damages, and that it was error to exclude it. Am. & Eng. Ency. of Law, volume 25, p. 600.
For the errors indicated the judgment of the Circuit Court is reversed and the cause is remanded for a new trial.
Reversed and remanded.