Any law-enforcement officer who fails to file the statements required by this chapter within forty-eight hours of the arrest of any person charged for any violation of section two, article five of this chapter or for any offense described in a municipal ordinance which has the same elements as an offense described in said section two of article five, shall be guilty of a misdemeanor and shall be subject to a fine of not less than twenty dollars nor more than five hundred dollars. And if the commissioner shall willfully fail to post by United States mail or other adequate means of communication a written report addressed to the law-enforcement officer of any such offense, as required by this section, within a period of forty-eight hours after the receipt of the statement, the commissioner shall be guilty of a misdemeanor and shall be subject to a fine of not less than twenty dollars nor more than five hundred dollars.