Bernic
use a Diester Clock system, This consists of a match
box size block that has its own internal number being
situated on site. Each time a patrolling officer visits
the site he swipes a recorder across the block. This
records the unique number of the block, the time and
the date and identifies the officer that has patrolled
the site.
These
recorders are sealed units and can not be altered
in anyway.
The
recorded details are loaded down to a PC and the record
of visits can be printed out on request.
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