Md. Code, Criminal Law § 6–107

(a) A person may not threaten verbally or in writing to:

(1) set fire to or burn a structure; or

(2) explode a destructive device, as defined in § 4-501 of this article, in, on, or under a structure.

(b) A person who violates this section is guilty of a misdemeanor and on conviction is subject to imprisonment not exceeding 10 years or a fine not exceeding $10,000 or both.