Examples herein describe systems and methods for securing an opening and disorienting an active shooter. A command device can send a deployment command to a zone in a building. In response, canopies in the zone can deploy a roll-up door made of Kevlar that electromagnetically locks shut. The canopies can include blindingly bright lights and deafening sirens that disorient the shooter. The doors can block off rooms or other areas of a school where children can huddle safely until the shooter is apprehended. Canopies without doors can also be used at some openings to disorient the shooter.

A tactical communications apparatus is used to establish secure, reliable communications between a forward-deployed communications station and any designated second communicator during a building siege or hostage situation. At least one communications device, at least one processing unit, a transceiver array, and a power supply are mounted to a casing. The casing allows the tactical communication apparatus to be tossed into an area. The transceiver array wirelessly connects to at least one remote terminal, enabling communication via the at least one communication device. The casing also contains a plurality of discrete surveillance devices mounted into the casing to enable an operator to remotely surveil the area around the casing. Further, the tactical communication apparatus also supports at least one offensive device operated via the at least one remote terminal. The at least one offensive device may be activated as cover for responders if communications fail to resolve a situation.

The invention relates to an electronic ignition unit for a stun grenade, comprising at least one energy source, at least one igniter, at least one control device, wherein the electronic ignition device further comprises an igniter driver connected to the at least one energy source and to the at least one control device.

Disclosed herein are embodiments of a method for averting a danger. The method is performed by a control apparatus for an unmanned vehicle, and the method involves obtaining a plurality of pieces of sensor information. At least partially depending on the obtained pieces of sensor information it is determined whether a danger exists. If it is determined that a danger exists, then at least one averting measure for averting the danger is determined, and the at least one averting measure is performed or caused to be performed.

A method for covertly creating adverse health effects in a human subject includes generating at least one electromagnetic wave at a frequency within the range of about 300 MHz (megahertz) and about 300 GHz (gigahertz). The at least one electromagnetic energy wave is pulsed at a pulse frequency within a target range of human neural oscillations. At least one ultrasonic audio wave is generated at a frequency greater than about 20 kHz (kilohertz). The at least one audio wave is pulsed at the pulse frequency. Each of the at least one pulsed electromagnetic wave and the at least one ultrasonic audio wave are remotely transmitted to the subject's brain.

A grenade firing mechanism 12 has a body 18 defining an internal chamber 32 in which a firing pin structure 40 is located. The firing pin structure is actuated by an inertia toggle 64 having a first end contained within the chamber and a second end region 72 which projects from the body. A safety lever 16 is releasably mounted to the second end region 72 of the inertia toggle in an operative position to prevent the inertia toggle moving to actuate the firing pin structure. A lever spring 104 is operative to eject the lever from the inertia toggle allow the firing pin structure to be actuated when the grenade is deployed. The lever 16 carries an abutment pin 120 which extends through the body to engage the firing pin structure 40 to inhibit the firing pin structure moving in a firing direction when the lever is in its operative position. The inertia toggle may have a convex abutment surface which engages the firing pin structure. The firing mechanism is particularly suited to a sound flash distraction grenade.

A tactical communications apparatus is used to establish secure, reliable communications between a forward-deployed communications station and any designated second communicator during a building siege or hostage situation. At least one communications device, at least one processing unit, a transceiver array, and a power supply are mounted to a casing. The casing allows the tactical communication apparatus to be tossed into an area. The transceiver array wirelessly connects to at least one remote terminal, enabling communication via the at least one communication device. The casing also contains a plurality of discrete surveillance devices mounted into the casing to enable an operator to remotely surveil the area around the casing. Further, the tactical communication apparatus also supports at least one offensive device operated via the at least one remote terminal. The at least one offensive device may be activated as cover for responders if communications fail to resolve a situation.

A grenade firing mechanism 12 has a body 18 defining an internal chamber 32 in which a firing pin structure 40 is located. The firing pin structure is actuated by an inertia toggle 64 having a first end contained within the chamber and a second end region 72 which projects from the body. A safety lever 16 is releasably mounted to the second end region 72 of the inertia toggle in an operative position to prevent the inertia toggle moving to actuate the firing pin structure. A lever spring 104 is operative to eject the lever from the inertia toggle allow the firing pin structure to be actuated when the grenade is deployed. The lever 16 carries an abutment pin 120 which extends through the body to engage the firing pin structure 40 to inhibit the firing pin structure moving in a firing direction when the lever is in its operative position. The inertia toggle may have a convex abutment surface which engages the firing pin structure. The firing mechanism is particularly suited to a sound flash distraction grenade.

An electronic irritation device includes a plurality of electronic irritation signal modules. Each of the modules has at least one emitter for emitting optical or acoustic irritation signals, and additionally a connection device for coupling the plurality of irritation signal modules to one another and an unlocking device for automatically unlocking the connection device in order to decouple the plurality of irritation signal modules from one another and thereby distribute them spatially. Distributing a plurality of irritation signal modules makes it possible to increase the probability of an irritation effect upon deployment of a single irritation device.

A modular surrogate can include: a body having an external body surface with an anatomical shape, wherein the body includes an internal chamber with at least one port formed in the body extending inwardly; at least one anatomical module having an external module portion and a module stem coupled thereto, the module stem being received into a corresponding module port of the at least one port, the external module portion having an external module surface with an anatomical shape, the external body surface matches with the external module surface to provide a continuous anatomical shape; at least one sensor located in the at least one anatomical module; and at least one controller, wherein when the at least one anatomical module is coupled with the body, the at least one sensor is capable of being operably coupled with the at least one controller.