A surveillance projectile consisting primarily of a very robust electronic
device designed to be contained in a 40 mm cartridge that can be fired
over distances through an open window or door and into a remote location,
such as an enclosed site, where it is desirable to surreptitiously
acquire intelligence by electronic means or by irradiating an interior
with invisible infrared light to facilitate infrared sensing. The
projectile may be configured to contain any of several types of
surveillance devices. Such devices may be, but are not limited to,
wirelessly operated cameras, audio transmitters, recorders and infrared
illuminators. Audio transmission may be scrambled for decoding at a
receiver.