Published: 10/03/2005, Volume II5, No. 5946 Page 6

Health visitor Ann Lewis of Liverpool shows off a discreet new security measure which she says makes her feel much safer.

Intended for NHS staff who work in the community, the 'identicom' device resembles a normal ID card holder, but when activated puts users through to a call centre that assist in locating them and arranges for the police to help.