A switchblade (also known as switch knife, automatic knife, pushbutton knife, ejector knife, flick knife, Stiletto, flick blade, or spring knife. The switchblade is also known in Germany as the Springmesser (also called a Sprenger or[1] Springer[2][3])) is a pocketknife with a sliding or pivoting blade contained in the handle which is extended automatically by a spring when a button, lever, or switch on the handle or bolster is activated. Virtually all switchblades incorporate a locking blade, where the blade is locked against accidental closure when the blade is in the open position. It is unlocked by a mechanism that allows the blade to be folded and locked in the closed position.
During the 1950s, US newspapers as well as the tabloid press promoted the image of a new violent crime wave caused by young male delinquents with a stiletto, switchblade, or flick knife, based mostly on anecdotal evidence.[4][5] In 1954, Democratic Rep. James J. Delaney of New York authored the first bill submitted to the U.S. Congress banning the manufacture and sale of switchblades, beginning a wave of legal restrictions worldwide and a consequent decline in their popularity.
The most common type of switchblade is the side-opening or out-the-side (OTS) knife. These resemble traditional manually-operated folding knives, but feature a coil or leaf spring which powers a blade that is released when the activation button is pressed. Side-opening knives may feature a safety mechanism that prevent the accidental actuation of the blade release mechanism. Manipulation of a lever, slide button, bolster, or picklock releases the blade for closure.
While operationally identical (in terms of one-handed opening), the "spring-assist" or "assisted opening" knife is not a switchblade or automatic knife. A switchblade opens its blade from the handle automatically to the fully locked and open position with the single press of a button, lever, or switch that is remotely mounted in the knife handle or bolster. In contrast, a spring-assist design uses either 1) manual pressure upon a protrusion on the blade itself or 2) movement of a lever or switch directly linked to the blade to initiate partial opening of the blade, at which point an internal spring propels the blade into the fully open, locked position.
Despite this difference in function, the criminal codes of many nations treat the assisted opening knife as a prohibited weapon like the switchblade. In the US, persons have occasionally been arrested or prosecuted by state law enforcement authorities for carrying assisted-opening knives defined as an illegal switchblade.[6][7][8] An attempt to criminalize the sale of spring-assisted knives by federal law enforcement was forestalled by a US 2009 amendment (Amendment 1447) to 15 U.S.C. 1244. This amendment provides that the Switchblade Knife Act shall not apply to spring-assist or assisted-opening knives (i.e. knives with closure-biased springs that require physical force applied to the blade to assist in opening the knife).[9]
Beginning with the Austrian Arms Act of 1996[10] switchblades, like all other knives, are generally legal to buy, import, possess or carry, regardless of blade length or opening or locking mechanism.[11] The only exception are minors (defined as persons under the age of 18) and people who have been expressly banned from owning and carrying any weapon (Waffenverbot): both groups may only possess knives which are not considered "weapons" under the Arms Act, defined as "objects that by their very nature are intended to reduce or eliminate the defensive ability of a person through direct impact".[11] Switchblades usually fall under that definition.[11]
In Austria the regulatory laws of individual states and the Assembly Act prohibit switchblades and other knives from being carried into a public building, school, public assembly, or public event.[12]
In Australia, switchblades are banned by the Customs (Prohibited Imports) Regulations as a Prohibited Import. Australian customs refer to the automatic knife or switchblade as a flick knife. Australian law defines a flick knife as a knife that has a blade which opens automatically by gravity, by centrifugal force, or by any pressure applied to a button, spring or device in or attached to the handle of the knife, a definition that would cover not only switchblades and automatic-opening knives, but also gravity knives and balisongs.
At a state and local level, most jurisdictions declare flick knives to be prohibited weapons in their respective acts, codes and regulations. Persons residing in states that do not have specific weapons legislation covering switchblades (such as Tasmania) are still covered by Federal Customs legislation, but in conditions where the state has no legislation against such items, an exemption may be applied for and received if approved by the chief supervisory officer of the police service in that state.
Some states which have specific legislation against switchblades allow individuals to apply for an exemption from this legislation if they have a legitimate reason. For example, in the state of Victoria, a member of a bona fide knife-collectors' association, who is not a prohibited person (per the Firearms Act 1996), and meets other guidelines and conditions may apply to the Chief Commissioner of Police for a Prohibited Weapons Exemption to possess, carry, or otherwise own such a knife. This exemption may then, in turn, be used to apply to the Australian Customs Service for an import permit.[13]
Article 3, 1 of the 2006 Weapons Act[14] lists the switchblade or automatic knife (couteaux à cran d'arrêt et à lame jaillissante) as a prohibited weapon.[15] In Belgium, the police and local jurisdictions are also allowed to prohibit the carrying or possession of a wide variety of knives, which are not explicitly banned by law, if the owner cannot establish a legitimate reason (motif légitime) for having that knife, particularly in urban areas or at public events.[16][14]
Under Part III of the Criminal Code a knife that has a blade that opens automatically by gravity or centrifugal force or by hand pressure applied to a button, spring or other device in or attached to the handle of the knife, is illegal to possess, import, sell, buy, trade, or carry on one's person. These are prohibited weapons (armes défendues).[17] While certain businesses can be granted a licence to acquire and possess prohibited weapons such as switchblades for use as props in movie productions, these exemptions do not apply to individuals.
In Finland switchblade or automatic knives are legal to purchase or possess.[16] All knives are considered as dangerous weapons and it is forbidden to carry any knife without a proper cause.[19] The law forbids carrying or importing any automatic knife that has the blade completely hidden like OTF switchblades.[20] The restriction does not apply to importing historically significant knives or those with significant artistic value. The law requires that switchblades be cased and secured while being transported.[16]
French law defines switchblades as dangerous weapons, which may not be carried on one's person.[16] If carried in a vehicle, such knives must be placed in a secure, locked compartment not accessible to the vehicle occupants.[16] In addition, French law provides that authorities may classify any knife as a prohibited item depending upon circumstances and the discretion of the police or judicial authorities.[16]
All large side-opening switchblade knives (blade longer than 8.5 cm (3.3 in)), OTF switchblades, balisongs or butterfly knives (blade longer than 4 cm (1.6 in)), and gravity knives are illegal to own, import or export under German law. Side-opening switchblade knives with single-edged blades not longer than 8.5 cm (3.3 in) and incorporating a continuous spine are legal to own. Legal switchblades may be carried both open and concealed on one's person if there is a justified need for it ("berechtigtes Bedürfnis") or if the weapon cannot be accessed with less than 3 moves ("Transport in verschlossenem Behältnis"). Other laws or regulations may still prohibit the carrying of otherwise legal automatic or switchblade knives, particularly in certain situations or places (gatherings on public ground, check-in areas of airports).
In Italy, the switchblade or automatic opening knife (coltello a scatto) is generally defined as an arma bianca (offensive weapon) rather than a tool. While legal for adults to purchase, such knives may not be transported outside of one's property nor carried on the person, either concealed or unconcealed, nor may it be carried in a motor vehicle where the knife may be accessed by driver or passengers.[24][25] The Italian Ministry of Interior has warned that switchblade knives will be considered offensive weapons in their own right.[26]
According to Lithuanian law it is illegal to carry or possess a switchblade if it meets one of the following criteria: the blade is longer than 8.5 cm (3.3 in); the width in the middle of the blade is less than 14% of its total length; the blade is double sided.[28]
Knives, including switchblades, although regarded as dangerous tools, are not considered weapons under Polish law,[33] except for blades hidden in umbrellas, canes, etc. It is legal to sell, buy, trade and possess a switchblade, and Polish law does not prohibit carrying a knife in a public place. However, certain prohibitions may apply during mass events.[34]
Switchblades are illegal to buy, sell and carry in Turkey per the corresponding law 6136 (4) which includes an incarceration sentence of up to 1 year. However, due to the widespread use of switchblades and butterfly knives in the country, imprisoning is very rare and sentences are often converted to a fine when it is the only violation.
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