It shall be the duty of all sheriffs, deputies, and constables to enforce the collection of all taxes that may be due the state under any law. It shall be the duty of all tax collectors, tax commissioners, sheriffs, and constables to make sure that all persons violating any of the tax laws of this state are prosecuted for all such violations. One-fourth of the fines imposed upon persons convicted of violating any tax law of this state upon the information of any citizen of this state shall be paid to the informant by order of the court.