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An emergency service unit (ESU), alternatively emergency service detail (ESD) or emergency service squad (ESS), is a type of unit within an emergency service, usually police, that is capable of responding to and handling a broader or more specific range of emergencies and calls for service than regular units within their organization, such as rescue, emergency management, and mass casualty incidents. They are similar to police tactical units, fire department technical rescue, and incident response teams in other emergency services and organizations, and often have similar or overlapping roles; the term is also used synonymously for these units, or as a catch-all for units that combine multiple disciplines and roles under one banner.
The term originated with the Emergency Service Unit of the New York City Police Department, which handles emergencies ranging from tactical responses and K-9 deployments to technical rescue and even emergency medicine.
An ESU operates at the direction of the command staff and responds to emergency and high-risk situations that occur outside the scope of duties of responding patrol and criminal investigation units. ESU members train continually both in-house and with other similar units and organizations across jurisdictions.
In law enforcement, an ESU often provides services analogous to a police tactical unit, and in some police forces it may simply be the name of their tactical unit without any additional roles.
Some ESUs provide services typically handled by fire departments and emergency medical services, such as emergency medicine, technical rescue, search and rescue, and HAZMAT; however, as they are usually not intended to fully replace these services, in some cases they may be unable to provide the full extent of their services based on their roles or scope, such as being able to stabilize patients for further treatment but not fully treat their ailments, or being able to rescue victims from structural fires but not fight the fire itself to a significant extent.
ESUs are generally trained to handle multiple types of emergencies in various disciplines, particularly in specific situations such as basic firefighting, vehicle extrication, elevator rescue, urban search and rescue, diver rescue, battlefield medicine, and bomb disposal. As many ESUs are also in law enforcement or also serve as tactical units, they tend to also have training in firearms, tactical procedures, arrest procedures, de-escalation, door breaching, and combat.
ESU equipment can include: vehicle extrication tools, high-angle and low-angle rope and victim rescue equipment, SCUBA, forcible entry tools, lighting equipment, irritant chemical agents, HAZMAT detection instruments, HAZMAT PPE, HAZMAT decontamination, pneumatic breaching tools, self-contained breathing apparatus (SCBA), water rescue gear, animal control tools, semi- and fully automatic firearms, and ballistic gear, portable cutting and hand tools, high-energy hydraulic rescue tools, metal detectors, climbing gear, body bunker ballistic shields, portable field lighting, small marine craft, fire-fighter protective clothing, ballistic body armor and shields, basic life support (BLS) or advanced life support (ALS) equipment, as well as additional medical equipment.
ESU utilizes smaller patrol response vehicles which are supported by larger utility "rescue squad" type trucks. Smaller patrol ESU response vehicles can range from an SUV to a light or medium duty truck or van with a rear-mounted utility body. Larger ESU vehicles can range from a medium duty chassis to a heavy duty "squad" utility body mounted on a commercial chassis. Other ESU support vehicles can include one or more ambulances, wheeled or tracked armored vehicle, portable light towers/generators up to 100 kW, emergency support vehicles which contain inflatable marine watercraft or massive inflatable airbags.
ESUs also exist as a non-law enforcement agency based municipal, county or non-government entity and may exist as both career and volunteer groups which are located in urban, rural and remote areas. Non-law enforcement ESUs provide temporary emergency response to incidents during major public events to support the jurisdictions primary 911 EMS, fire and rescue service. ESUs also provide tactical emergency medical support, rescue of confined space victims, wildland/urban interface initial fire suppression, underwater rescue/recovery, high angle rope rescue, wildland search & rescue (SAR), auto accidents victim rescue, building collapses. In rural areas, ESUs perform suppression of wildland forest, brush and grass fires that occur, cliff and mountain search and rescue, underwater search and rescue, swift water and flood rescue operations. The key rationale for the integration of the functions is that many rural and remote communities do not have dedicated staffing, resources and infrastructure to sustain immediate 24/7 emergency response. A local ESU may exist to mainly provide emergency training such as CPR/AED, first aid, 1st responder, etc. to citizens, communities, OSHA work site and to marine/boating. This mobile training capability uses a light-duty emergency vehicle that is fully equipped with a basic life support (BLS) responder medical, wildland/urban interface firefighting system, powered hydraulic and air bag rescue systems, self-contained breathing apparatus and protective fire gear and other equipment and, when requested, can support the local emergency response system as a rapid intervention vehicle. A state or local public health Emergency Services Unit manages the Department’s emergency supplies, supporting technologies used during disasters, and helps fulfill the National and state Emergency Support Function (ESF) #8 Health & Medical Services and ESF #6 Mass Care & Sheltering needs of community citizens during a major emergency or disaster. Local chapters of the American Red Cross often maintain an Emergency Services Unit to provide disaster relief assistance to individuals and families affected by local disasters at fires and local disaster shelters as well as mobile emergency response vehicles (ERV)/ mobile canteens. Scores of our Nation's hospitals and medical centers use Emergency Services Unit to denote their specific organizational section that encompasses their emergency department (ED), Hospital Emergency Incident Management System (HEICS)-Emergency Coordination Center (ECC) and/or their "First Receiver" outside patient decontamination system, and sometimes includes a hospital operated emergency medical service (EMS) paramedic ambulance program. An Emergency Services Unit can also often denote a government or non-government entity emergency mental health or family crisis intervention team.
Critics claim that the increasing number of ESU and SWAT is a sign of militarization of police and an overreach of (or overreliance on) police to perform tasks that can otherwise be performed by other services. Among the critics is the Cato Institute's Radley Balko, who has written several books and articles on the subject.
Emergency services and rescue services are organizations that ensure public safety, security, and health by addressing and resolving different emergencies. Some of these agencies exist solely for addressing certain types of emergencies, while others deal with ad hoc emergencies as part of their normal responsibilities. Many of these agencies engage in community awareness and prevention programs to help the public avoid, detect, and report emergencies effectively. Emergency services are often considered first responders, and typically have dedicated emergency vehicles.
The New York City Fire Department, officially the Fire Department of the City of New York (FDNY) is the full-service fire department of New York City, serving all five boroughs. The FDNY is responsible for fire suppression and fire prevention, and is a major provider of EMS services in New York City. Beyond fire suppression and EMS, the FDNY is responsible for a broad range of services, including technical rescue, CBRN defense, and structural collapse response and analysis. The FDNY is equipped with a wide variety of general-purpose and specialized Vehicles,Tools and Equipment to serve its varied missions.
A volunteer fire department (VFD) is a fire department of volunteers who perform fire suppression and other related emergency services for a local jurisdiction. Volunteer and retained (on-call) firefighters are expected to be on call to respond to emergency calls for long periods of time, and are summoned to the fire station when their services are needed. They are also expected to attend other non-emergency duties as well.
Firefighting jargon includes a diverse lexicon of both common and idiosyncratic terms. One problem that exists in trying to create a list such as this is that much of the terminology used by a particular department is specifically defined in their particular standing operating procedures, such that two departments may have completely different terms for the same thing. For example, depending on whom one asks, a safety team may be referred to as a standby, a RIT or RIG or RIC, or a FAST. Furthermore, a department may change a definition within its SOP, such that one year it may be RIT, and the next RIG or RIC.
The Hong Kong Fire Services Department is an emergency service responsible for firefighting and rescue on land and sea. It also provides an emergency ambulance service for the sick and the injured and gives fire protection advice to the public. It is under the Secretary for Security who heads the Security Bureau.
The Singapore Civil Defence Force (SCDF) is a uniformed organisation in Singapore under the Ministry of Home Affairs that provides emergency services such as firefighting, technical rescue, and emergency medical services, and coordinates national civil defence programme.
Mississauga Fire and Emergency Services (MFES) provides fire protection, technical rescue services, hazardous materials response, and first responder emergency medical assistance to the city of Mississauga, Ontario, Canada.
The New Zealand Fire Service was New Zealand's main firefighting body from 1 April 1976 until 1 July 2017 – at which point it was dissolved and incorporated into the new Fire and Emergency New Zealand.
A rescue vehicle is a specialised vehicle designed to transport and provide the equipment necessary for technical rescue. Vehicles carry an array of special equipment such as the jaws of life, wooden cribbing, generators, winches, hi-lift jacks, cranes, cutting torches, circular saws and other forms of heavy equipment unavailable on standard trucks. This capability differentiates them from traditional pumper trucks or ladder trucks designed primarily to carry firefighters and their entry gear as well as on-board water tanks, hoses and equipment for fire extinguishing and light rescue. Most rescue vehicles lack on-board water tanks and pumping gear, owing to their specialized role. A rescue vehicle is typically operated by a rescue squad, but in some areas it may be integrated with emergency medical services or fire departments.
NSW Ambulance, previously the Ambulance Service of NSW, is an agency of NSW Health and the statutory provider of pre-hospital emergency care and ambulance services in the state of New South Wales, Australia.
As firefighting has a rich history throughout the world, traditions in this profession vary widely from country to country.
The New Jersey Transit Police Department (NJTPD) is a transit police agency of the New Jersey Transit Corporation in the state of New Jersey. As provided by NJS Title 27:25-15.1, New Jersey Transit Police Officers have "general authority, without limitation, to exercise police powers and duties, as provided by law for police officers and law enforcement officers, in all criminal and traffic matters at all times throughout the State and, in addition, to enforce such rules and regulations as the NJ Transit Corporation shall adopt and deem appropriate."
The Emergency Service Unit(ESU) is part of the Special Operations Bureau of the New York City Police Department. The unit provides specialized support and advanced equipment to other NYPD units. Members of ESU are cross-trained in multiple disciplines for police, medical, and rescue work.
Firefighting in the United States dates back to the earliest European colonies in the Americas. Early firefighters were simply community members who would respond to neighborhood fires with buckets. The first dedicated volunteer fire brigade was established in 1736 in Philadelphia. These volunteer companies were often paid by insurance companies in return for protecting their clients.
The Baltimore City Fire Department (BCFD) provides fire protection and emergency medical services to the city of Baltimore, Maryland, United States. Founded in 1797 and established in 1859, the Baltimore City Fire Department covers an area of 81 square miles (210 km2) of land and 11 square miles (28 km2) of water, with a resident population of over 640,000 and a daytime population of over 1,000,000. The BCFD responds to approximately 235,000 emergency calls annually. There are two International Association of Fire Fighters (IAFF) locals; IAFF 734 for firefighters and IAFF 964 for officers.
A hazardous material (hazmat) apparatus is a vehicle used by emergency services to respond to calls involving potentially hazardous materials. These vehicles are customized to fit the needs of the agency responsible for the apparatus, which may be a rescue squad, fire department, emergency medical services, law enforcement agency, or military.
The Vancouver Fire Department (VFD) provides fire protection and emergency medical services to the city of Vancouver and, by contract to Clark County Fire District 5, in Washington, United States. The VFD's response area is 91 square miles (240 km2) with a population of over 294,000 (2023). The VFD has the highest call volume per firefighter in the state. ALS transport is provided by AMR, making the VFD's service area population by far the largest in Western Washington without public ALS ambulance service.
Harrisburg Bureau of Fire (HBF) is a firefighting agency that is located in and serves Harrisburg, Pennsylvania, and its surrounding metropolitan area. It is a career firefighting agency with at least 15 firefighters and fire officers on duty at any given time, supplemented with volunteer staffing as well. Everyday duties for the Bureau include fire suppression, emergency medical services, tactical rescue, urban search and rescue, water rescue, hazardous materials response, fire prevention, fire codes enforcement, and public safety educations.
The Pittsburgh Bureau of Emergency Medical Services (PEMS) provides emergency medical services and medically directed rescue services for the City of Pittsburgh, Pennsylvania. It is a bureau of the Department of Public Safety (DPS), along with the Bureaus of Police, Administration, Fire, and Animal Care and Control. The department is responsible for 55.5 square miles (144 km2) with a population of 305,841 as of the 2013 Census estimation. The Bureau was founded in 1975 by the then current city administration, absorbing Freedom House Ambulance. In addition, the Bureau of EMS was one of the first EMS agencies in the world.
A Special operations firefighter, also known as Fire Service Special Operations, is a specialist firefighter who has been specially trained to execute tasks other than standard firefighting operations. The National Fire Protection Association's Standard for the Organization and Deployment of Fire Suppression Operations, Emergency Medical Operations, and Special Operations to the Public by Career Fire Departments defines special operations as "Those emergency incidents to which the fire department responds that require specific and advanced training and specialized tools and equipment". The NFPA 1710 further defined special operations as "Special operations include water rescue, extrication, hazardous materials, confined space entry, highangle rescue, aircraft rescue and fire fighting, and other operations requiring specialized training".