Security Guard key terms

The limited legal power of a security guard to hold a person briefly on private property when there is reasonable grounds to believe a crime occurred, until police arrive.

An arrest made by a private person, not a sworn officer, permitted only in narrow circumstances defined by law, such as witnessing an indictable offence or a breach of the peace.

A belief based on specific facts and circumstances that would lead an ordinary, prudent person to conclude something is probably true, such as that a person committed an offence.

Entering or remaining on private property without permission or after being asked to leave, which a guard may lawfully address by directing the person to depart.

The guilty mental state or intent element of a criminal offence, meaning the accused knew or intended the prohibited act, as distinct from merely doing it by accident.

The physical act or conduct element of a criminal offence, such as taking property without permission, which must be paired with a guilty mind for a conviction.

A graduated framework describing escalating levels of force, from presence and verbal direction up to physical control, matched to the resistance a guard reasonably faces.

The principle that any force used must be no greater than necessary to address the threat, measured against the seriousness of the situation and the level of resistance encountered.

Force intended or likely to cause death or serious bodily harm, such as using a firearm or a strike to the head, permitted only when facing an imminent threat of the same magnitude.

A legal expectation in some jurisdictions that a person should withdraw from a confrontation when safely possible before using defensive force, though rules vary by location and situation.

The legal justification for using reasonable force to protect oneself from an imminent threat of harm, limited to what is necessary to stop the attack.

Applying restraints to control a person's wrists, a use of force that must be justified, applied safely, and monitored for the subject's breathing and circulation.

Suffocation caused by a person's body position restricting breathing, a serious risk when a subject is restrained face-down or compressed, requiring prompt repositioning to a seated or side position.

A medical emergency marked by extreme agitation, confusion, profuse sweating, and insensitivity to pain, which requires urgent medical response and careful restraint to prevent sudden death.

A planned path and schedule a guard follows through an assigned area, with checkpoints and timing designed to create visible, unpredictable coverage of vulnerable locations.

Moving through an area on an irregular, unpredictable schedule so that observers cannot easily anticipate a guard's location, which strengthens deterrence and detection.

A designated location on a patrol route that a guard must visit, often recorded by a scanner or log, to confirm that the full route was covered.

A written record of a guard's shift documenting patrols, incidents, observations, and actions taken, using factual, objective language and accurate times.

Writing that states observable facts, times, and direct quotes rather than opinions, assumptions, or conclusions, keeping reports credible and useful in later proceedings.

A formal written account of an unusual event, describing what happened, who was involved, what actions were taken, and what evidence or witnesses exist, completed promptly and accurately.

The documented, unbroken record of who handled, seized, and transferred an item of evidence, from collection to final disposition, preserving its reliability.

Protecting physical items, scenes, and recordings from contamination, loss, or alteration until they can be handed to police or stored securely.

A written set of procedures telling staff and occupants what to do during a fire, medical emergency, evacuation, or other crisis, including roles, routes, and assembly points.

A designated path leading occupants safely out of a building or area during an emergency, kept clear of obstructions and marked with visible signage.

A prearranged safe outdoor location where evacuees gather after leaving a building so that staff can account for everyone and report missing persons.

A structured system in which one person coordinates the emergency response, assigning roles for communication, evacuation, and liaison with emergency services.

The guard's role of meeting arriving police, fire, or medical crews, briefing them on the situation, and guiding them to the correct location.

The set of measures that regulate who may enter a facility or area, using credentials, locks, gates, or staff checks to keep unauthorized persons out.

Checking that a person's identification, badge, or pass is genuine, current, and matches the holder before granting entry to a secured area.

An unauthorized person following an authorized person through a controlled door or gate without presenting their own credentials, a common access-control breach.

A record of guests entering a facility, capturing name, purpose, host, time in, and time out, used to track who is on site during an emergency.

Examining people or belongings, by search or scanning, to detect prohibited items or threats before allowing entry to a protected area.

A person's voluntary agreement to be searched, which must be given knowingly and may be withdrawn, forming the lawful basis for most private-property searches.

The legal obligation of a guard and employer to take reasonable steps to protect people on the premises from foreseeable harm.

A failure to exercise the care that a reasonable person would in similar circumstances, resulting in harm, and requiring a duty, a breach, causation, and damages.

The principle that an employer can be held legally responsible for the acts or omissions of its employees when those acts occur in the course of their duties.

The range of activities a guard is authorized and expected to perform, which determines whether an employer may be liable for the guard's conduct.

Written instructions from the employer that define a guard's specific duties, authority, procedures, and restrictions at a particular site.

A situation where a guard's personal interest, relationship, or outside benefit could improperly influence their professional judgment or duties.

The set of ethical and behavioural standards a guard is expected to follow, covering honesty, impartiality, professionalism, and proper use of authority.

The duty to protect private information learned on the job, such as personal details or security arrangements, and to share it only with those who need it.

The limits that keep a guard's relationships with the public and clients appropriate, avoiding favouritism, personal involvement, or abuse of authority.

Techniques such as calm speech, active listening, distance, and time that reduce tension and resolve a confrontation without physical force.

Fully concentrating on a speaker, reflecting back what was heard, and asking clarifying questions to understand concerns and defuse frustration.

An approach that treats the public as clients to be helped, using courtesy, clear explanation, and helpful problem-solving alongside security duties.

Agreed rules for speaking on a two-way radio, covering call signs, clear and brief messages, channel discipline, and confirmation of received instructions.

Gear such as gloves, safety footwear, high-visibility vests, or eye protection worn to reduce the risk of injury during assigned duties.

The process of identifying potential dangers at a site, judging their likelihood and severity, and deciding what controls are needed to reduce risk.

A ranked approach to reducing harm, preferring elimination and engineering controls before administrative measures and protective equipment as the last line of defence.

Any act or threat of physical aggression, intimidation, or harassment directed at staff in the course of their work, including from clients, visitors, or coworkers.

An employee who performs duties alone, without direct supervision or nearby assistance, requiring extra communication checks and safety planning.