Apparatus for scanning the retina for the security identification of persons; apparatus for use in security control; automatic access security apparatus; automatic security barriers; cards encoded with security features for authentication purposes; cards encoded with security features for identification purposes; closed circuit television security apparatus; controlled access security apparatus (closed circuit television); data security apparatus; data security instruments; domestic security installations for buildings (electric or electronic); door security devices of metal for buildings (electric); door security devices of metal for buildings (optical); electric access security apparatus; electric controlled access security apparatus; electric security apparatus for buildings; electric security apparatus for the detection of intruders in buildings; electric security apparatus for the prevention of theft from buildings; electric security locking devices for armoured doors; electric security locking devices for the doors of safes; electric security monitoring apparatus incorporating fibre optic cables; electrical apparatus for security purposes (other than for vehicles); electrical devices for security purposes (other than for vehicles); electrical devices for security purposes in vehicles; electrical security apparatus, other than for vehicles; electrical security devices, other than for vehicles; electrically operated security apparatus, other than for vehicles; electronic controlled access security apparatus; electronic security apparatus for use in homes; electronic security apparatus for use in offices; electronic security apparatus, other than for vehicles; electronic security devices, other than for vehicles; electronic security equipment, other than for vehicles; electronic security installations for use in buildings; electronic security tags; electronic tags for security control purposes; encoded cards for operating security apparatus; heat sensitive cameras for security purposes; heat sensitive devices for security purposes; installations (electric or electronic) for use in security; labels (magnetic or encoded) for use in marking products for security; metal security (anti-theft) devices (electric, not for vehicles); mirrors used for security and surveillance; photocells for use with security lighting; printed matter incorporating machine readable security markings; security alarm systems (other than for vehicles); security alarms (other than for vehicles); security apparatus for computers; security apparatus for elevators; security apparatus for processing audio signals; security apparatus for processing video and/or audio signals; security apparatus for receiving audio signals; security apparatus for receiving video signals; security apparatus for storing audio signals; security apparatus for storing video signals; security apparatus for transmitting audio signals; security apparatus for transmitting video signals; security apparatus incorporating lights for use in buildings; security apparatus incorporating lights for use on the exterior of buildings; security control apparatus; security control instruments; security devices for computer hardware; security devices for computer software; security installations, other than for vehicles; security passes (encoded); security passes (magnetic); security surveillance apparatus; security systems for buildings; security systems for elevators; security systems, other than for vehicles; security warning apparatus; telecommunications security instruments; telephone security instruments; transmitters for use in security; value cards for security purposes (machine readable or magnetic); value cards for security purposes (magnetic); video camera security apparatus; video camera security installations; video camera security instruments; video cameras adapted for security purposes