Section 4
SEC. 4. Any person who refuses or obstructs an anti-malaria worker from the performance of the duties provided in this Decree or refuses, without just cause, to allow said worker free entry to his premises during a malaria control campaign shall be fined not less than three hundred pesos nor more than five hundred pesos, or by imprisonment for not less than one month but not more than three months, or both, depending upon the discretion of the court.