¶1I am satisfied that the plaintiff has proved by a fair preponderance of evidence the existence of a partnership between him and defendant.
¶2The remaining question to be disposed of is presented by defendant’s motion to dismiss the complaint on the ground that the contract between the parties was illegal.
¶3The copartnership was formed for the purpose “ of conducting a plumbers’, steam-fitting and roofing business ” in the city of Hew York, and by the terms of the oral agreement between the parties the plaintiff was to furnish his experience as a master plumber.
¶4Section 1 of chapter 803 of the Laws, of 1896 provides that once in each year every employing or master plumber carrying on his *40trade, Business or calling in the city of New York shall register his name and address at the office of the department of Buildings in said city, provided that on applying for registration he holds a certificate of competency from the examining hoard of plumbers of said city; and that after the passage of the act “ it shall not be lawful for any person or copartnership to engage in or carry on the trade, business or calling of employing or master plumber in the city of New York unless the name and address of such person and of each and every member of such copartnership shall have been registered as above provided.” And section 2 of said statute further enacts that in said city “ it shall be unlawful for any person or persons to expose the sign of ‘ Plumber ’ or 1 Plumbing/ or a sign containing words of similar import and meaning, unless said person or persons shall have obtained a certificate of competency from the examining board of plumbers of said city, and shall have registered as herein provided.”
¶5A violation of said provisions “ by any person ” is punishable by fine, or imprisonment, or-both.
¶6It appears that the plaintiff, during the continuance of the co-partnership, complied in all respects with the said statute; that he did all of the plumbing work, and that the defendant at no time during such period held a certificate of competency from the examining board of plumbers and was not registered at the department of buildings of this city.
¶7The act is a penal one and in derogation of common-law right (Raynard v. Chase, 1 Burr. 2), and should receive a strict rather than a liberal construction.
¶8The contract of partnership is not tainted with illegality, so that the maxim “ in equal fault the condition of the defendant is the better one ” is inapplicable. The plaintiff in all respects obeyed the law; the defendant alone failed to comply with its requirements. Moreover, the acts prohibited by the statute are mala prohibita, not mala in se, and the penalties for its violation are directed against the defendant only. See Curtis v. Leavitt, 15 N. Y. 236.
¶9There seems no valid reason why the defendant should not account for partnership profits, and plaintiff is entitled to judgment accordingly.
¶10Judgment for plaintiff.