PAVA spray
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Through Ethanol, Nitrogen and United Kingdom
PAVA is significantly more potent than CS gas. The liquid stream is a spray pattern and has a maximum effective range of up to four metres (13 ft). Maximum accuracy, however, will be achieved over a distance of 1.25–2 metres (4.1–6.6 ft). The operating distance is the distance between the canister and the subject's eyes, not the distance between the user and the subject.
Effects
PAVA primarily affects the eyes, causing closure and severe pain. The pain to the eyes is reported to be greater than that caused by CS. The effectiveness rate is very high once PAVA gets into the eyes; however, there have been occasions where PAVA and CS have failed to work—especially when the subject is under the influence of alcohol or other drugs. Exposure to fresh moving air will normally result in a significant recovery from the effects of PAVA, within 15–35 minutes.
Pharmacologically, like other capsaicinoids, PAVA works by direct binding to receptors (TRPV1) that normally produce the pain and sensation of heat, as if exposed to scalding heat.
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Usage
PAVA is used widely as a less lethal, temporary defence tool around the world including in the United Kingdom, India, Switzerland, and others.
British police and HM Prison Service
PAVA is approved for police and prison service use in the United Kingdom. British police forces had traditionally used CS gas spray, but with the more widespread carriage of tasers, PAVA has now entirely replaced its predecessor due to its non-flammable nature.
Legal restrictions
- United States: California, Minnesota, Delaware, Washington DC and Wisconsin restrict use of less than lethal projectiles and devices using them.
- United Kingdom: Citizens may not use PAVA, under Section 5 of the Firearms Act 1968; however, police, prison officers and other Crown servants are allowed to use PAVA to uphold the law.
Treatment
There are various treatments to combat the effects of nonivamide. One popular method includes administering a one to one solution of milk of magnesia and water to the eyes. Doctors also recommend not using oils or creams on the skin, and to not wear contact lenses, if one is planning to minimise the effects of nonivamide.