The following words, when used in this Article, shall have the meanings set out herein:
ANTIQUE, CURIO OR RELIC FIREARM
Any firearm so defined by the National Gun Control Act, 18 U.S.C. Title 26, § 5845, and the United States Treasury/Bureau of Alcohol, Tobacco and Firearms, 27 CFR 478.11:
1. 
"Antique firearm" is any firearm not designed or redesigned for using rim fire or conventional center fire ignition with fixed ammunition and manufactured in or before 1898, said ammunition not being manufactured any longer; this includes any matchlock, wheel lock, flintlock, percussion cap or similar type ignition system, or replica thereof;
2. 
Curio or relic firearm is any firearm deriving value as a collectible weapon due to its unique design, ignition system, operation or at least fifty (50) years old, associated with a historical event, renown personage or major war.
BLACKJACK
Any instrument that is designed or adapted for the purpose of stunning or inflicting physical injury by striking a person, and which is readily capable of lethal use.
BLASTING AGENT
Any material or mixture, consisting of fuel and oxidizer that is intended for blasting, but not otherwise defined as an explosive under this Section, provided that the finished product, as mixed for use of shipment, cannot be detonated by means of a numbered 8 test blasting cap when unconfined.
CONCEALABLE FIREARM
Any firearm with a barrel less than sixteen (16) inches in length, measured from the face of the bolt or standing breech.
DEFACE
To alter or destroy the manufacturer's or importer's serial number or any other distinguishing number or identification mark.
DETONATOR
Any device containing a detonating charge that is used for initiating detonation in an explosive, including but not limited to, electric blasting caps of instantaneous and delay types, non-electric blasting caps for use with safety fuse or shock tube and detonating cord delay connectors.
EXPLOSIVE WEAPON
Any explosive, incendiary, or poison gas bomb or similar device designed or adapted for the purpose of inflicting death, serious physical injury or substantial property damage; or any device designed or adapted for delivering or shooting such a weapon. For the purposes of this Article, the term "explosive" shall mean any chemical compound mixture or device, the primary or common purpose of which is to function by explosion, including but not limited to, dynamite and other high explosives, pellet powder, initiating explosives, detonators, safety fuses, squibs, detonating cords, igniter cords, and igniters or blasting agents.
FIREARM
Any weapon that is designed or adapted to expel a projectile by the action of an explosive.
FIREARM SILENCER
Any instrument, attachment or appliance that is designed or adapted to muffle the noise made by the firing of any firearm.
GAS GUN
Any gas ejection device, weapon, cartridge, container or contrivance, other than a gas bomb, that is designed or adapted for the purpose of ejecting any poison gas that will cause death or serious physical injury, but not any device that ejects a repellent or temporary incapacitating substance.
INTOXICATED
Substantially impaired mental or physical capacity resulting from introduction of any substance into the body.
KNIFE
Any dagger, dirk, stiletto, or bladed hand instrument that is readily capable of inflicting serious physical injury or death by cutting or stabbing a person. For purposes of this Article, "knife" does not include any ordinary pocketknife with no blade more than four (4) inches in length.
KNUCKLES
Any instrument that consists of finger rings or guards made of a hard substance that is designed or adapted for the purpose of inflicting serious physical injury or death by striking a person with a fist enclosed in the knuckles.
MACHINE GUN
Any firearm that is capable of firing more than one (1) shot automatically, without manual reloading, by a single function of the trigger.
PROJECTILE WEAPON
Any bow, crossbow, pellet gun, slingshot or other weapon that is not a firearm, which is capable of expelling a projectile that could inflict serious physical injury or death by striking or piercing a person.
RIFLE
Any firearm designed or adapted to be fired from the shoulder and to use the energy of the explosive in a fixed metallic cartridge to fire a projectile through a rifled bore by a single function of the trigger.
SHORT BARREL
A barrel length of less than sixteen (16) inches for a rifle and eighteen (18) inches for a shotgun, both measured from the face of the bolt or standing breech, or an overall rifle or shotgun length of less than twenty-six (26) inches.
SHOTGUN
Any firearm designed or adapted to be fired from the shoulder and to use the energy of the explosive in a fixed shotgun shell to fire a number of shot or a single projectile through a smooth bore barrel by a single function of the trigger.
SPRING GUN
Any fused, timed or non-manually controlled trap or device designed or adapted to set off an explosion for the purpose of inflicting serious physical injury or death.
SWITCHBLADE KNIFE
Any knife which has a blade that folds or closes into the handle or sheath; and
1. 
That opens automatically by pressure applied to a button or other device located on the handle; or
2. 
That opens or releases from the handle or sheath by the force of gravity or by the application of centrifugal force.
A. 
A person commits the offense of unlawful use of weapons, except as otherwise provided by Sections 571.101 to 571.121, RSMo., if he or she knowingly:
1. 
Carries concealed upon or about his or her person a knife, a firearm, a blackjack or any other weapon readily capable of lethal use into any area where firearms are restricted under Section 571.107, RSMo.; or
2. 
Sets a spring gun; or
3. 
Discharges or shoots a firearm into a dwelling house, a railroad train, boat, aircraft, or motor vehicle as defined in Section 302.010, RSMo., or any building or structure used for the assembling of people; or
4. 
Exhibits, in the presence of one (1) or more persons, any weapon readily capable of lethal use in an angry or threatening manner; or
5. 
Has a firearm or projectile weapon readily capable of lethal use on his or her person, while he or she is intoxicated, and handles or otherwise uses such firearm or projectile weapon in either a negligent or unlawful manner or discharges such firearm or projectile weapon unless acting in self-defense; or
6. 
Discharges a firearm within one hundred (100) yards of any occupied schoolhouse, courthouse, or church building; or
7. 
Discharges or shoots a firearm at a mark, at any object, or at random, on, along or across a public highway or discharges or shoots a firearm into any outbuilding; or
8. 
Carries a firearm or any other weapon readily capable of lethal use into any church or place where people have assembled for worship, or into any election precinct on any election day, or into any building owned or occupied by any agency of the Federal Government, State Government, or political subdivision thereof; or
9. 
Discharges or shoots a firearm at or from a motor vehicle, as defined in Section 301.010, RSMo., discharges or shoots a firearm at any person, or at any other motor vehicle, or at any building or habitable structure, unless the person was lawfully acting in self-defense; or
10. 
Carries a firearm, whether loaded or unloaded, or any other weapon readily capable of lethal use into any school, onto any school bus, or onto the premises of any function or activity sponsored or sanctioned by school officials or the district school board; or
11. 
Possesses a firearm while also knowingly in possession of a controlled substance that is sufficient for a felony violation of Section 579.015, RSMo.; or
12. 
Discharges or shoots a firearm within the City limits unless acting in self-defense.
B. 
Subsection (A)(1), (8), and (10) of this Section shall not apply to the persons described in this Subsection, regardless of whether such uses are reasonably associated with or are necessary to the fulfillment of such person's official duties except as otherwise provided in this Subsection. Subsection (A)(3), (4), (6), (7), (9) and (12) of this Section shall not apply to or affect any of the following persons, when such uses are reasonably associated with or are necessary to the fulfillment of such person's official duties, except as otherwise provided in this Subsection:
1. 
All State, County and Municipal Peace Officers who have completed the training required by the Police Officer Standards and Training Commission pursuant to Sections 590.030 to 590.050, RSMo., and who possess the duty and power of arrest for violation of the general criminal laws of the State or for violation of ordinances of Counties or Municipalities of the State, whether such officers are on or off duty, and whether such officers are within or outside of the law enforcement agency's jurisdiction, or all qualified retired Peace Officers, as defined in Subsection (H) of this Section, and who carry the identification defined in Subsection (I) of this Section, or any person summoned by such officers to assist in making arrests or preserving the peace while actually engaged in assisting such officer;
2. 
Wardens, superintendents and keepers of prisons, penitentiaries, jails and other institutions for the detention of persons accused or convicted of crime;
3. 
Members of the Armed Forces or National Guard while performing their official duty;
4. 
Those persons vested by Article V, Section 1, of the Constitution of Missouri with the judicial power of the State and those persons vested by Article III of the Constitution of the United States with the judicial power of the United States, the members of the Federal judiciary;
5. 
Any person whose bona fide duty is to execute process, civil or criminal;
6. 
Any Federal Probation Officer or Federal Flight Deck Officer as defined under the Federal Flight Deck Officer Program, 49 U.S.C. § 44921, regardless of whether such officers are on duty, or within the law enforcement agency's jurisdiction;
7. 
Any State Probation or Parole Officer, including supervisors and members of the Parole Board;
8. 
Any corporate security advisor meeting the definition and fulfilling the requirements of the regulations established by the Department of Public Safety under Section 590.750, RSMo.;
9. 
Any coroner, deputy coroner, medical examiner, or assistant medical examiner;
10. 
Any municipal or county prosecuting attorney or assistant prosecuting attorney, circuit attorney or assistant circuit attorney, municipal, associate or circuit judge, or any person appointed by a court to be a special prosecutor who has completed the firearms safety training course required under Subsection 2 of Section 571.111, RSMo.;
11. 
Any member of a Fire Department or Fire Protection District who is employed on a full-time basis as a fire investigator and who has a valid concealed carry endorsement issued prior to August 28, 2013, or a valid concealed carry permit under Section 571.111, RSMo., when such uses are reasonably associated with or are necessary to the fulfillment of such person's official duties; and
12. 
Upon the written approval of the Governing Body of a Fire Department or Fire Protection District, any paid Fire Department or Fire Protection District member who is employed on a full-time basis and who has a valid concealed carry endorsement issued prior to August 28, 2013, or a valid concealed carry permit, when such uses are reasonably associated with or are necessary to the fulfillment of such person's official duties.
C. 
Subsection (A)(1), (5), (8), and (10) of this Section does not apply when the actor is transporting such weapons in a non-functioning state or in an unloaded state when ammunition is not readily accessible or when such weapons are not readily accessible. Subsection (A)(1) of this Section does not apply to any person nineteen (19) years of age or older or eighteen (18) years of age or older and a member of the United States Armed Forces, or honorably discharged from the United States Armed Forces, transporting a concealable firearm in the passenger compartment of a motor vehicle, so long as such concealable firearm is otherwise lawfully possessed, nor when the actor is also in possession of an exposed firearm or projectile weapon for the lawful pursuit of game, or is in his or her dwelling unit or upon premises over which the actor has possession, authority or control, or is traveling in a continuous journey peaceably through this State. Subsection (A)(10) of this Section does not apply if the firearm is otherwise lawfully possessed by a person while traversing school premises for the purposes of transporting a student to or from school, or possessed by an adult for the purposes of facilitation of a school-sanctioned firearm-related event or club event.
D. 
Subsection (A)(1), (8), and (10) of this Section shall not apply to any person who has a valid concealed carry permit issued pursuant to Sections 571.101 to 571.121, RSMo., a valid concealed carry endorsement issued before August 28, 2013, or a valid permit or endorsement to carry concealed firearms issued by another state or political subdivision of another state.
E. 
Subsection (A)(3), (4), (5), (6), (7), (8), (9), (10), and (12) of this Section shall not apply to persons who are engaged in a lawful act of defense pursuant to Section 563.031, RSMo.
F. 
Notwithstanding any provision of this Section to the contrary, the State shall not prohibit any State employee from having a firearm in the employee's vehicle on the State's property, provided that the vehicle is locked and the firearm is not visible. This Subsection shall only apply to the State as an employer when the State employee's vehicle is on property owned or leased by the State and the State employee is conducting activities within the scope of his or her employment. For the purposes of this Subsection, "State employee" means an employee of the executive, legislative, or judicial branch of the government of the State of Missouri.
G. 
Nothing in this Section shall make it unlawful for a student to actually participate in school-sanctioned gun safety courses, student military or ROTC courses, or other school-sponsored or club-sponsored firearm-related events, provided the student does not carry a firearm or other weapon readily capable of lethal use into any school, onto any school bus, or onto the premises of any other function or activity sponsored or sanctioned by school officials or the district school board.
H. 
As used in this Section, "qualified retired Peace Officer" means an individual who:
1. 
Retired in good standing from service with a public agency as a Peace Officer, other than for reasons of mental instability;
2. 
Before such retirement, was authorized by law to engage in or supervise the prevention, detection, investigation, or prosecution of, or the incarceration of any person for, any violation of law, and had Statutory powers of arrest;
3. 
Before such retirement, was regularly employed as a Peace Officer for an aggregate of fifteen (15) years or more, or retired from service with such agency, after completing any applicable probationary period of such service, due to a service-connected disability, as determined by such agency;
4. 
Has a non-forfeitable right to benefits under the retirement plan of the agency if such a plan is available;
5. 
During the most recent twelve-month period, has met, at the expense of the individual, the standards for training and qualification for active Peace Officers to carry firearms;
6. 
Is not under the influence of alcohol or another intoxicating or hallucinatory drug or substance; and
7. 
Is not prohibited by Federal law from receiving a firearm.
I. 
The identification required by Subsection (B)(1) of this Section is:
1. 
A photographic identification issued by the agency from which the individual retired from service as a Peace Officer that indicates that the individual has, not less recently than one (1) year before the date the individual is carrying the concealed firearm, been tested or otherwise found by the agency to meet the standards established by the agency for training and qualification for active peace officers to carry a firearm of the same type as the concealed firearm; or
2. 
A photographic identification issued by the agency from which the individual retired from service as a Peace Officer; and
3. 
A certification issued by the State in which the individual resides that indicates that the individual has, not less recently than one (1) year before the date the individual is carrying the concealed firearm, been tested or otherwise found by the State to meet the standards established by the State for training and qualification for active Peace Officers to carry a firearm of the same type as the concealed firearm.
[1]
Note: Under certain circumstances, this offense can be a felony under State law.
A. 
A person commits an offense if such person knowingly possesses, manufactures, transports, repairs, or sells:
1. 
An explosive weapon;
2. 
An explosive, incendiary or poison substance or material with the purpose to possess, manufacture or sell an explosive weapon;
3. 
A gas gun;
4. 
A bullet or projectile which explodes or detonates upon impact because of an independent explosive charge after having been shot from a firearm;
5. 
Knuckles; or
6. 
Any of the following in violation of Federal law:
a. 
A machine gun;
b. 
A short-barreled rifle or shotgun;
c. 
A firearm silencer; or
d. 
A switchblade knife.
B. 
A person does not commit an offense pursuant to this Section if his/her conduct involved any of the items in Subsection (A)(1) through (5), the item was possessed in conformity with any applicable Federal law, and the conduct:
1. 
Was incident to the performance of official duty by the Armed Forces, National Guard, a governmental law enforcement agency or a penal institution; or
2. 
Was incident to engaging in a lawful commercial or business transaction with an organization enumerated in Subsection (B)(1) of this Section; or
3. 
Was incident to using an explosive weapon in a manner reasonably related to a lawful industrial or commercial enterprise; or
4. 
Was incident to displaying the weapon in a public museum or exhibition; or
5. 
Was incident to using the weapon in a manner reasonably related to a lawful dramatic performance.
[1]
Note: Under certain circumstances, this offense can be a felony under State law.
A person commits the offense of defacing a firearm if he/she knowingly defaces any firearm.
Residents of the State of Missouri may purchase firearms in any State, provided that such residents conform to the applicable provisions of the Federal Gun Control Act of 1968, 18 U.S.C. § 921 et seq., and regulations thereunder, and provided further that such residents conform to the provisions of law applicable to such purchase in the State of Missouri and in the State in which the purchase is made.
Residents of any State may purchase firearms in the State of Missouri, provided that such residents conform to the applicable provisions of the Federal Gun Control Act of 1968, 18 U.S.C. § 921 et seq., and regulations thereunder, and provided further that such residents conform to the provisions of law applicable to such purchase in the State of Missouri and in the State in which such persons reside.
A. 
Any person who has been found guilty of the following shall not be present in or loiter within five hundred (500) feet of any school building, on real property comprising any school, or in any conveyance owned, leased or contracted by a school to transport students to or from school or a school-related activity when persons under the age of eighteen (18) are present in the building, on the grounds, or in the conveyance, unless the offender is a parent, legal guardian, or custodian of a student present in the building and has met the conditions set forth in Subsection (B) of this Section.
1. 
Violating any of the provisions of Chapter 566, RSMo., or the provisions of Section 568.020, RSMo., Incest; Section 568.045, RSMo., Endangering The Welfare Of A Child In The First Degree; Section 573.200, RSMo., Use Of A Child In A Sexual Performance; Section 573.205, RSMo., Promoting A Sexual Performance By A Child; Section 573.023, RSMo., Sexual Exploitation Of A Minor; Section 573.037, RSMo., Possession Of Child Pornography; Section 573.025, RSMo., Promoting Child Pornography; or Section 573.040, RSMo., Furnishing Pornographic Material To Minors; or
2. 
Any offense in any other jurisdiction which, if committed in this State, would be a violation listed in this Section.
B. 
No parent, legal guardian or custodian who has pleaded guilty or nolo contendere to, or been convicted of, or been found guilty of violating any of the offenses listed in Subsection (A) of this Section shall be present in any school building, on real property comprising any school, or in any conveyance owned, leased or contracted by a school to transport students to or from school or a school-related activity when persons under the age of eighteen (18) are present in the building, on the grounds, or in the conveyance, unless the parent, legal guardian, or custodian has permission to be present from the Superintendent or School Board or in the case of a private school from the Principal. In the case of a public school, if permission is granted, the Superintendent or School Board President must inform the Principal of the school where the sex offender will be present. Permission may be granted by the Superintendent, School Board, or in the case of a private school from the Principal for more than one (1) event at a time, such as a series of events, however, the parent, legal guardian or custodian must obtain permission for any other event he/she wishes to attend for which he/she has not yet had permission granted.
C. 
Regardless of the person's knowledge of his or her proximity to school property or a school-related activity, violation of the provisions of this Section is an ordinance violation.
A. 
Any person who has been found guilty of the following shall not knowingly be present in or loiter within five hundred (500) feet of any real property comprising any public park with playground equipment, a public swimming pool, athletic complex or athletic fields if such facilities exist for the primary use of recreation for children, any museum if such museum holds itself out to the public as and exists with the primary purpose of entertaining or educating children under eighteen (18) years of age, or Missouri Department of Conservation nature or education center properties.
1. 
Violating any of the provisions of Chapter 566, RSMo., or the provisions of Section 568.020, RSMo., Incest; Section 568.045, RSMo., Endangering The Welfare Of A Child In The First Degree; Section 573.200, RSMo., Use Of A Child In A Sexual Performance; Section 573.205, RSMo., Promoting A Sexual Performance By A Child; Section 573.023, RSMo., Sexual Exploitation Of A Minor; Section 573.025, RSMo., Promoting Child Pornography; Section 573.037, RSMo., Possession Of Child Pornography; or Section 573.040, RSMo., Furnishing Pornographic Material To Minors; or
2. 
Any offense in any other jurisdiction which, if committed in this State, would be a violation listed in this Section.
B. 
Any person who has been found guilty of an offense under Subsection (A)(1) or (2) of this Section who is the parent, legal guardian, or custodian of a child under the age of eighteen (18) attending a program on the property of a nature or education center of the Missouri Department of Conservation may receive permission from the nature or education center manager to be present on the property with the child during the program.
A. 
Any person required to register as a sexual offender under Sections 589.400 to 589.425, RSMo., shall be required on October 31 of each year to:
1. 
Avoid all Halloween-related contact with children;
2. 
Remain inside his or her residence between the hours of 5:00 P.M. and 10:30 P.M. unless required to be elsewhere for just cause, including, but not limited to, employment or medical emergencies;
3. 
Post a sign at his or her residence stating "No candy or treats at this residence"; and
4. 
Leave all outside residential lighting off during the evening hours after 5:00 P.M.
B. 
Any person required to register as a sexual offender under Sections 589.400 to 589.425, RSMo., who violates the provisions of Subsection (A) of this Section shall be guilty of an ordinance violation.
It shall be unlawful for any person within the City to urinate in or upon any street, park, any public place open to the public or private place open to public view other than in the restroom facilities provided for such activity.