Patrol in the context of "Beat (police)"

A security guard (also known as a security inspector, security officer, factory guard, or protective agent) is a person employed by an organisation or individual to protect their employer's assets (property, people, equipment, money, etc.) from a variety of hazards (such as crime, waste, damages, unsafe worker behavior, etc.) by enforcing preventative measures. Security guards do this by maintaining a high-visibility presence to deter illegal and inappropriate actions, looking (either directly through patrols, or indirectly by monitoring alarm systems or video surveillance cameras) for signs of crime or other hazards (such as a fire), taking action to minimize damage (such as warning and escorting trespassers off property), and reporting any incidents to their clients and emergency services (such as the police or emergency medical services), as appropriate.

Security officers are generally uniformed to represent their lawful authority to protect private property. Security guards are generally governed by legal regulations, which set out the requirements for eligibility (such as a criminal record check) and the permitted authorities of a security guard in a given jurisdiction. The authorities permitted to security guards vary by country and subnational jurisdiction. Security officers are hired by a range of organizations, including businesses, government departments and agencies and not-for-profit organizations (e.g., churches and charitable organizations).

A police box is a public telephone kiosk or callbox for the use of members of the police, or for members of the public to contact the police. It was used in some countries, most widely in the United Kingdom throughout the 20th century from the early 1920s. Unlike an ordinary callbox, its telephone was located behind a hinged door so it could be used from the outside by anyone, and the interior of the box was, in effect, a miniature police station for use by police officers to read and fill in reports, take meal breaks and temporarily hold detainees until the arrival of transport.

The typical British police box contained a telephone linked directly to the local police station, allowing patrolling officers to keep in contact with the station, reporting anything unusual or requesting help if necessary. A light on top of the box would flash to alert an officer that they were requested to contact the station. Police boxes were usually blue, with the most notable exception being Glasgow, where they were red until the late 1960s. In addition to a telephone, they contained equipment such as an incident book, a fire extinguisher and a first aid kit. Labelled a "British icon" by the Plymouth Herald, the blue Metropolitan Police boxes, designed by Gilbert Mackenzie Trench in 1929, became Britain's most recognisable police boxes. The blue police box is associated with the science fiction television programme Doctor Who, in which The Doctor's time machine, a TARDIS, is disguised as a British police box.

A rearguard or rear security is a part of a military force that protects it from attack from the rear, either during an advance or withdrawal. The term can also be used to describe forces protecting lines, such as communication lines, behind an army. Even more generally, a rearguard action may refer idiomatically to an attempt at preventing something though it is likely too late to be prevented; this idiomatic meaning may apply in either a military or non-military context.

A police car is an emergency vehicle used by police for transportation during patrols and responses to calls for service. Police cars are used by police officers to patrol a beat, quickly reach incident scenes, and transport and temporarily detain suspects.

Police vehicles, like other emergency vehicles, usually bear livery markings to distinguish them as such. They generally use emergency lights (typically red, blue, or both) and sirens to warn other motorists of their presence, especially when responding to calls for service. Police cars typically contain communication devices, weaponry, and a variety of equipment for dealing with emergency situations. The vast majority of police cars are modified variants of civilian-market automobiles, though some are custom police-oriented models that are usually designed for special purposes.

Metropolitan Division, commonly referred to as Metro Division or just Metro, is an elite division of the Los Angeles Police Department (LAPD). It was formed in 1933 and is organized under the LAPD's Special Operations Group. Metropolitan Division is responsible for managing the LAPD's specialized crime suppression, K-9, mounted, and tactical units, named "platoons".

Metropolitan Division is responsible for numerous duties including supporting regular patrol units, solving major crimes, search warrant service, dignitary protection, surveillance, counterterrorism, riot control, and resolving high-risk standoffs. As of 2019, Metropolitan Division consists of 392 officers across eight platoons.

In military parlance, the rear is the part of concentration of military forces that is furthest from the enemy (compare its antonym, the front). The rear typically contains all logistic and management elements of the force necessary to support the front line forces, and generally constitutes supply depots, ammunition dumps, field hospitals, machine shops, planning/communication facilities, command headquarters, and infrastructure such as roads, bridges, airfields, dockyards, and railway depots.

Military personnel in the rear are usually called the rear detachment, and they are responsible for staffing, supplying, and maintaining the rear elements. The rear is considered a crucial part of military organization, and it can sometimes outnumber the unit's front line force by several times.