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Aspring-gun, also known as abooby trap gun, is agun, often ashotgun, rigged to fire when a string or other triggering device is tripped by contact of sufficient force to "spring" thetrigger so that anyone stumbling over or treading on it would discharge the gun. Setting or maintaining a spring-gun is illegal in many places.
Spring-guns were formerly used asbooby traps againstpoachers andtrespassers. Since 1827, spring-guns and all man-traps have been illegal in England. Spring-guns are sometimes used to trapanimals.[1] Although there have been few reported cases of use, there have been several unconfirmed cases over the 20th century.
In the 18th century, spring-guns were often used to protect graveyards, offering an alarm system of sorts to protect newly buried bodies, which were often stolen by grave-robbers who supplied anatomists with cadavers.
Spring-guns were often set to protect property. For this purpose, spring-guns are often placed in busy corridors such as near doors. A trespasser opening the door completely would then be shot. Residents who are aware of the trap use a different door or open the door halfway and disconnect the tripwire. To reduce fatalities by using this trap, non-lethal calibers are often used, or the spring-gun is fitted to fireless lethal ammunition.
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For example, in the United States, most spring-guns are loaded with non-lethalcaliber or shot to avoidliability arising from the use ofdeadly force in the protection of a property interest. Posting clear and unmistakable warning signs as well as making entry to spring-gun guarded premises difficult for innocent persons, such as highwalls,fences and natural obstacles, are significant ways to reduce potentialtort liability arising from the spring gun's wounding of a careless or criminal intruder. Important USlawsuits regarding trespassers wounded by spring-guns includeKatko v. Briney.Bird v. Holbrook is an 1825 English case also of great relevance, where a spring-gun set to protect a tulip garden injured a trespasser who was recovering astray bird.[2] The man who set the spring-gun was liable for the damage caused.
Another example was theZf.Ger.38 used for training, originally intended to fire blank rounds, however it was later used for static defence.[3]
An historic use of a spring-gun occurred during the night of June 3 or early morning of June 4, 1775, when a spring-gun set by the British to protect the military stores in the Magazine in Williamsburg, Virginia,[4] wounded two young men who had broken in. The subsequent outrage by the local population proved to be the final act of theGunpowder Incident, leading Governor Dunmore to flee the city to a British warship and declare the Commonwealth of Virginia in a state of rebellion.
In 1981, Rene Seiptius and two friends attempted to flee fromEast Germany toWest Germany. While they managed to avoidland mines, they did trip a spring-gun, killing one of Rene's friends.[5]
In 1990, one man in a group of fourburglars was killed during a burglary by a spring-gun that was set up by a business owner in Colorado.[6][7] The business had been burglarized eight times during the previous two years, including at least one previous burglary by the man who died.[7] The man who set the trap pled guilty tomanslaughter.[8] To deter thefts, other businesses in the area put up signs claiming their premises were also booby trapped, with the unintended result that firefighters and other emergency personnel would refuse to enter these buildings during emergencies until they could be assured of their safety.[6]
Alternative traps are mines such asgas mines or thedirectional mine, such as theSM-70, which was used on theinner German border to prevent refugees fromescaping East Germany. Crowd-control munitions and gas mines can be less lethal, while concussion mines are meant to kill. The latter are thus only used in military perimeter defenses.
