I would check with your County's State's Attorney and ask for solid documentation one way or the other (although he will probably tell you MoCo is safe and you do not need any means of defense)
State's Attorney's Office 240-777-7300 or e-mail email@example.com
Disclaimer: I am not a lawyer, just a schmuck with Google. I haven't found anything conclusive in the State code as of yet, and State Code § 4-101. Dangerous weapons does not seem to address tasers specifically.It does seems there are at least a fewCounties that prohibit tasers:
Anne Arundel County
§ 9-1-603. Electronic weapons – prohibited acts.
(a) Definition. In this section, "electronic weapon" means a "stun gun" or any similar device by whatever name that is designed as a weapon capable of injuring an individual by the discharge of electrical current.
(b) Scope. This section does not apply to a law enforcement officer acting within the scope of the officer's official duties.
(c) Prohibitions. A person may not sell, give away, lend, rent, or transfer an electronic weapon in the County. A person may not possess or discharge an electronic weapon in the County.
Sec. 8.404. Sale or possession of electronic weapons prohibited.
(a)Prohibitions. It shall be unlawful for any person, firm or corporation to sell, give away, lend, rent or transfer to any individual, firm or corporation an electronic weapon within the limits of Howard County. It further shall be unlawful for any person to possess, fire, discharge or activate any electronic weapon within the limits of Howard County.
(b)Exceptions. Subsection (a) of this section shall not apply to:
(1)A public safety officer acting within the scope of the officer's official duties; or
(2)The sale, rental, or transfer of an electronic weapon to a department, office, or agency of Howard County.
(C.B. 38, 1985; C.B. 7, 2007, § 1)
§ 17-2-104. STUN GUNS.
(1)In this section the following words have the meanings indicated.
(2) (i) “Stun gun” means any portable, electronic shock transmitting device that is designed and intended to incapacitate an individual's neuromuscular system by the discharge of nonprojectible electric current.
(ii)“Stun gun” does not include bona fide medical equipment.
(3)“Law enforcement personnel” means a full-time member of a police force or other agency of the United States, a state, county, municipal corporation, or other political subdivision who is responsible for the prevention and detection of crime and the enforcement of laws.
(1)Except for law enforcement personnel while in the performance of official duties, a person may not use, possess, or discharge a stun gun.
(2)A person may not sell, offer to sell, rent, offer to rent, transfer, or offer to transfer a stun gun to a person unless the person is law enforcement personnel.
(c)Penalty. A person who violates this section is guilty of a misdemeanor and on conviction is subject to a fine not exceeding $1,000 or imprisonment not exceeding 6 months or both.
(1988 Code, § 20-44) (Bill No. 114-99, § 3, 7-1-2004)
Article describing a proposed State-wide ban:
Sorry the search was not more thorough...I get nauseous reading through Maryland "self-defense-friendly" laws . Good luck and be safe out there!