Following the raid, in April 2009, the farm installed a £60,000 security system to deter potential intruders.

Word of the flaw's existence had begun leaking to potential intruders.

Physical Security controls access into the building, keeps track of who comes and goes, detects and responds to potential intruders.

That was all created to deal with potential intruders while they were still outside, but they already had unknown enemies rampaging through the station.

Home security systems signs would also be exempt under the proposal because they are intended to discourage potential intruders.

Today, Air Guard jets also provide the main coastal defenses against potential terrorist intruders, he said.

While the privacy offered a potential intruder unimpeded access to his windows, it also gave Mickey an easy means of egress.

Natural surveillance aims at keeping potential intruders or criminals under observation.

Very few potential intruders would think to use it.