In this Chapter, unless the context requires a different definition, the following shall apply:
ACCESS
To instruct, communicate with, store data in, retrieve or extract data from, or otherwise make any use of any resources of, a computer, computer system, or computer network.
AFFIRMATIVE DEFENSE
1. 
The defense referred to is not submitted to the trier of fact unless supported by evidence; and
2. 
If the defense is submitted to the trier of fact the defendant has the burden of persuasion that the defense is more probably true than not.
BURDEN OF INJECTING THE ISSUE
1. 
The issue referred to is not submitted to the trier of fact unless supported by evidence; and
2. 
If the issue is submitted to the trier of fact any reasonable doubt on the issue requires a finding for the defendant on that issue.
COMMERCIAL FILM AND PHOTOGRAPHIC PRINT PROCESSOR
Any person who develops exposed photographic film into negatives, slides or prints, or who makes prints from negatives or slides, for compensation. The term commercial film and photographic print processor shall include all employees of such persons but shall not include a person who develops film or makes prints for a public agency.
COMPUTER
The box that houses the central processing unit (CPU), along with any internal storage devices, such as internal hard drives, and internal communication devices, such as internal modems capable of sending or receiving electronic mail or fax cards, along with any other hardware stored or housed internally. Thus, "computer" refers to hardware, software and data contained in the main unit. Printers, external modems attached by cable to the main unit, monitors, and other external attachments will be referred to collectively as "peripherals" and discussed individually when appropriate. When the computer and all peripherals are referred to as a package, the term "computer system" is used. "Information" refers to all the information on a computer system, including both software applications and data.
COMPUTER EQUIPMENT
Computers, terminals, data storage devices, and all other computer hardware associated with a computer system or network.
COMPUTER HARDWARE
All equipment which can collect, analyze, create, display, convert, store, conceal or transmit electronic, magnetic, optical or similar computer impulses or data. "Hardware" includes, but is not limited to, any data processing devices, such as central processing units, memory typewriters and self-contained laptop or notebook computers; internal and peripheral storage devices, transistor-like binary devices and other memory storage devices, such as floppy disks, removable disks, compact disks, digital video disks, magnetic tape, hard drive, optical disks and digital memory; local area networks, such as two (2) or more computers connected together to a central computer server via cable or modem; peripheral input or output devices, such as keyboards, printers, scanners, plotters, video display monitors and optical readers; and related communication devices, such as modems, cables and connections, recording equipment, RAM or ROM units, acoustic couplers, automatic dialers, speed dialers, programmable telephone dialing or signaling devices and electronic tone-generating devices; as well as any devices, mechanisms or parts that can be used to restrict access to computer hardware, such as physical keys and locks.
COMPUTER NETWORK
Two (2) or more interconnected computers or computer systems.
COMPUTER PROGRAM
A set of instructions, statements, or related data that directs or is intended to direct a computer to perform certain functions.
COMPUTER SOFTWARE
Digital information which can be interpreted by a computer and any of its related components to direct the way they work. Software is stored in electronic, magnetic, optical or other digital form. The term commonly includes programs to run operating systems and applications, such as word processing, graphic, or spreadsheet programs, utilities, compilers, interpreters and communications programs.
COMPUTER SYSTEM
A set of related, connected or unconnected, computer equipment, data, or software.
COMPUTER-RELATED DOCUMENTATION
Written, recorded, printed or electronically stored material which explains or illustrates how to configure or use computer hardware, software or other related items.
CONFINEMENT
1. 
A person is in confinement when such person is held in a place of confinement pursuant to arrest or order of a court and remains in confinement until:
a. 
A court orders the person's release; or
b. 
The person is released on bail, bond or recognizance, personal or otherwise; or
c. 
A public servant having the legal power and duty to confine the person authorizes his/her release without guard and without condition that he/she return to confinement.
2. 
A person is not in confinement if:
a. 
The person is on probation or parole, temporary or otherwise; or
b. 
The person is under sentence to serve a term of confinement which is not continuous, or is serving a sentence under a work-release program, and in either such case is not being held in a place of confinement or is not being held under guard by a person having the legal power and duty to transport the person to or from a place of confinement.
CONSENT
Consent or lack of consent may be expressed or implied. Assent does not constitute consent if:
1. 
It is given by a person who lacks the mental capacity to authorize the conduct charged to constitute the offense and such mental incapacity is manifest or known to the actor; or
2. 
It is given by a person who by reason of youth, mental disease or defect, intoxication, a drug-induced state, or any other reason is manifestly unable or known by the actor to be unable to make a reasonable judgment as to the nature or harmfulness of the conduct charged to constitute the offense; or
3. 
It is induced by force, duress or deception.
CONTROLLED SUBSTANCE
A drug, substance, or immediate precursor in Schedules I through V as defined in Chapter 195, RSMo.
CRIMINAL NEGLIGENCE
Failure to be aware of a substantial and unjustifiable risk that circumstances exist or a result will follow, and such failure constitutes a gross deviation from the standard of care which a reasonable person would exercise in the situation.
CUSTODY
A person is in custody when he/she has been arrested but has not been delivered to a place of confinement.
DAMAGE
When used in relation to a computer system or network, means any alteration, deletion, or destruction of any part of the computer system or network.
DANGEROUS FELONY
The felonies of arson in the first degree, assault in the first degree, attempted rape in the first degree if physical injury results, attempted forcible rape if physical injury results, attempted sodomy in the first degree if physical injury results, attempted forcible sodomy if physical injury results, rape in the first degree, forcible rape, sodomy in the first degree, forcible sodomy, assault in the second degree if the victim of such assault is a special victim as defined in Subdivision (14) of Section 565.002, RSMo., kidnapping in the first degree, kidnapping, murder in the second degree, assault of a Law Enforcement Officer in the first degree, domestic assault in the first degree, elder abuse in the first degree, robbery in the first degree, armed criminal action, conspiracy to commit an offense when the offense is a dangerous felony, vehicle hijacking when punished as a Class A felony, statutory rape in the first degree when the victim is a child less than twelve (12) years of age at the time of the commission of the act giving rise to the offense, statutory sodomy in the first degree when the victim is a child less than twelve (12) years of age at the time of the commission of the act giving rise to the offense, child molestation in the first or second degree, abuse of a child if the child dies as a result of injuries sustained from conduct chargeable under Section 568.060, RSMo., child kidnapping, parental kidnapping committed by detaining or concealing the whereabouts of the child for not less than one hundred twenty (120) days under Section 565.153, RSMo., and an "intoxication-related traffic offense" or "intoxication-related boating offense" if the person is found to be an "habitual offender" or "habitual boating offender" as such terms are defined in Section 577.001, RSMo.
DANGEROUS INSTRUMENT
Any instrument, article or substance which, under the circumstances in which it is used, is readily capable of causing death or other serious physical injury.
DATA
A representation of information, facts, knowledge, concepts, or instructions prepared in a formalized or other manner and intended for use in a computer or computer network. Data may be in any form including, but not limited to, printouts, microfiche, magnetic storage media, punched cards and as may be stored in the memory of a computer.
DEADLY WEAPON
Any firearm, loaded or unloaded, or any weapon from which a shot, readily capable of producing death or serious physical injury, may be discharged; or a switchblade knife, dagger, billy club, blackjack or metal knuckles.
DIGITAL CAMERA
A camera that records images in a format which enables the images to be downloaded into a computer.
DISABILITY
A mental, physical, or developmental impairment that substantially limits one (1) or more major life activities or the ability to provide adequately for one's care or protection, whether the impairment is congenital or acquired by accident, injury or disease, where such impairment is verified by medical findings.
ELDERLY PERSON
A person sixty (60) years of age or older.
FELONY
An offense so designated or an offense for which persons found guilty thereof may be sentenced to death or imprisonment for a term of more than one (1) year.
FORCIBLE COMPULSION
Either:
1. 
Physical force that overcomes reasonable resistance; or
2. 
A threat, express or implied, that places a person in reasonable fear of death, serious physical injury, or kidnapping of such person or another person.
INCAPACITATED
A temporary or permanent physical or mental condition in which a person is unconscious, unable to appraise the nature of his/her conduct, or unable to communicate unwillingness to an act.
INFRACTION
A violation defined by this Code or by any other Statute of this State if it is so designated or if no sentence other than a fine, or fine and forfeiture or other civil penalty, is authorized upon conviction.
INHABITABLE STRUCTURE
1. 
A vehicle, vessel or structure:
a. 
Where any person lives or carries on business or other calling; or
b. 
Where people assemble for purposes of business, government, education, religion, entertainment, or public transportation; or
c. 
Which is used for overnight accommodation of persons.
2. 
Any such vehicle, vessel, or structure is inhabitable regardless of whether a person is actually present.
3. 
If a building or structure is divided into separately occupied units, any unit not occupied by the actor is an inhabitable structure of another.
KNOWINGLY
1. 
When used with respect to conduct or attendant circumstances, means a person is aware of the nature of his or her conduct or that those circumstances exist; or
2. 
When used with respect to a result of conduct, means a person is aware that his or her conduct is practically certain to cause that result.
LAW ENFORCEMENT OFFICER
Any public servant having both the power and duty to make arrests for violations of the laws of this State, and Federal Law Enforcement Officers authorized to carry firearms and to make arrests for violations of the laws of the United States.
MISDEMEANOR
An offense so designated or an offense for which persons found guilty thereof may be sentenced to imprisonment for a term of which the maximum is one (1) year or less.
OF ANOTHER
Property that any entity, including but not limited to any natural person, corporation, limited liability company, partnership, association, governmental subdivision or instrumentality, other than the actor, has a possessory or proprietary interest therein, except that property shall not be deemed property of another who has only a security interest therein, even if legal title is in the creditor pursuant to a conditional sales contract or other security arrangement.
OFFENSE
Any felony, ordinance violation, misdemeanor or infraction.
PHYSICAL INJURY
Slight impairment of any function of the body or temporary loss of use of any part of the body.
PLACE OF CONFINEMENT
Any building or facility and the grounds thereof wherein a court is legally authorized to order that a person charged with or convicted of a crime be held.
POSSESS or POSSESSED
Having actual or constructive possession of an object with knowledge of its presence. A person has actual possession if such person has the object on his/her person or within easy reach and convenient control. A person has constructive possession if such person has the power and the intention at a given time to exercise dominion or control over the object either directly or through another person or persons. Possession may also be sole or joint. If one (1) person alone has possession of an object, possession is sole. If two (2) or more persons share possession of an object, possession is joint.
PROPERTY
Anything of value, whether real or personal, tangible or intangible, in possession or in action.
PUBLIC SERVANT
Any person employed in any way by a government of this State who is compensated by the government by reason of such person's employment, any person appointed to a position with any government of this State, or any person elected to a position with any government of this State. It includes, but is not limited to, legislators, jurors, members of the judiciary and Law Enforcement Officers. It does not include witnesses.
PURPOSELY
When used with respect to a person's conduct or to a result thereof, means when it is his/her conscious object to engage in that conduct or to cause that result.
RECKLESSLY
Consciously disregarding a substantial and unjustifiable risk that circumstances exist or that a result will follow, and such disregard constitutes a gross deviation from the standard of care which a reasonable person would exercise in the situation.
SERIOUS EMOTIONAL INJURY
An injury that creates a substantial risk of temporary or permanent medical or psychological damage, manifested by impairment of a behavioral, cognitive or physical condition. Serious emotional injury shall be established by testimony of qualified experts upon the reasonable expectation of probable harm to a reasonable degree of medical or psychological certainty.
SERIOUS PHYSICAL INJURY
Physical injury that creates a substantial risk of death or that causes serious disfigurement or protracted loss or impairment of the function of any part of the body.
SERVICES
When used in relation to a computer system or network, means use of a computer, computer system, or computer network and includes, but is not limited to, computer time, data processing, and storage or retrieval functions.
SEXUAL ORIENTATION
Male or female heterosexuality, homosexuality or bisexuality by inclination, practice, identity or expression, or having a self-image or identity not traditionally associated with one's gender.
SPECIAL VICTIM
Any of the following:
1. 
A Law Enforcement Officer assaulted in the performance of his or her official duties or as a direct result of such official duties;
2. 
Emergency personnel, any paid or volunteer firefighter, emergency room, hospital, or trauma center personnel, or emergency medical technician, assaulted in the performance of his or her official duties or as a direct result of such official duties;
3. 
A probation and parole officer assaulted in the performance of his/her official duties or as a direct result of such official duties;
4. 
An elderly person;
5. 
A person with a disability;
6. 
A vulnerable person;
7. 
Any jailer or corrections officer of the State or one (1) of its political subdivisions assaulted in the performance of his/her official duties or as a direct result of such official duties;
8. 
A highway worker in a construction or work zone as the terms "highway worker," "construction zone" and "work zone" are defined under Section 304.580, RSMo.;
9. 
Any utility worker, meaning any employee of a utility that provides gas, heat, electricity, water, steam, telecommunications services, or sewer services, whether privately, municipally, or cooperatively owned, while in the performance of his/her job duties, including any person employed under a contract;
10. 
Any cable worker, meaning any employee of a cable operator, as such term is defined in Section 67.2677, RSMo., including any person employed under contract, while in the performance of his/her job duties; and
11. 
Any employee of a mass transit system, including any employee of public bus or light rail companies, while in the performance of his/her job duties.
VEHICLE
A self-propelled mechanical device designed to carry a person or persons, excluding vessels or aircraft.
VESSEL
Any boat or craft propelled by a motor or by machinery, whether or not such motor or machinery is a principal source of propulsion used or capable of being used as a means of transportation on water, or any boat or craft more than twelve (12) feet in length which is powered by sail alone or by a combination of sail and machinery, and used or capable of being used as a means of transportation on water, but not any boat or craft having, as the only means of propulsion, a paddle or oars.
VOLUNTARY ACT
1. 
A bodily movement performed while conscious as a result of effort or determination. Possession is a voluntary act if the possessor knowingly procures or receives the thing possessed, or having acquired control of it was aware of his/her control for a sufficient time to have enabled him or her to dispose of it or terminate his/her control; or
2. 
An omission to perform an act of which the actor is physically capable. A person is not guilty of an offense based solely upon an omission to perform an act unless the law defining the offense expressly so provides, or a duty to perform the omitted act is otherwise imposed by law.
VULNERABLE PERSON
Any person in the custody, care, or control of the Department of Mental Health who is receiving services from an operated, funded, licensed, or certified program.
A. 
Guilt for an offense may be based upon an attempt to commit an offense if, with the purpose of committing the offense, a person performs any act which is a substantial step towards the commission of the offense. A "substantial step" is conduct which is strongly corroborative of the firmness of the actor's purpose to complete the commission of the offense.
B. 
It is no defense to a prosecution under this Section that the offense attempted was, under the actual attendant circumstances, factually or legally impossible of commission, if such offense could have been committed had the attendant circumstances been as the actor believed them to be.
[1]
Editor's Note: This Section previously pertained to conspiracy to commit an offense. However, the authorizing Statute, § 562.014, RSMo., was revised by SB600 in the 2020 Legislative Session to apply only to conspiracy to commit a Class A, B, or C felony offense or certain unclassified felony offenses. SB600 also reclassified the offense of conspiracy to commit an offense as a Class C felony.