Blackmailing

If any person shall knowingly send or deliver any letter or writing demanding of any other person, with menaces and without any reasonable or probable cause, any chattel, money or valuable security; or if any person shall accuse, or threaten to accuse, or shall knowingly send or deliver any letter or writing accusing or threatening to accuse any other person of any crime punishable by law with death or by imprisonment in the State's prison, with the intent to extort or gain from such person any chattel, money or valuable security, every such offender shall be guilty of a Class 1 misdemeanor.