It shall be unlawful for any person without prior written consent of the landowner or his agent to intentionally set fire to lands of another, or to intentionally cause or allow fire to spread to lands of another, whereby any woods, fields, fences or marshes of any other person are burned. Any person violating the provisions of this section shall, upon conviction, be punished as follows: (a) For the first offense, by a fine of not more than one thousand dollars, or imprisonment for not more than one year, or both, (b) for a second or subsequent offense, by a fine of not more than five thousand dollars or imprisonment for not more than five years.