[Date Prev][Date Next][Thread Prev][Thread Next][Date Index][Thread Index]
Re: Re: [NSW]CCTV Spying on staff
- Subject: Re: Re: [NSW]CCTV Spying on staff
- From: David Johnson <trainman@ozemail.com.au>
- Date: Sat, 05 May 2001 01:26:31 +1000
- Distribution: world
- Newsgroups: aus.rail
- Organization: OzEmail Ltd, Australia
- References: <3ACBB1A5.1A81FCA9@spin.net.au> <3acc2b0d$0$25519$7f31c96c@news01.syd.optusnet.com.au> <3ACCEB2F.721D4CCD@spin.net.au> <jXfz6.352$pO2.6811@ozemail.com.au>
- Xref: news1.unite.net.au aus.rail:36670
On Fri, 6 Apr 2001 19:26:50 +1000, "Chris Downs"
<cvdowns@ozemail.com.au> wrote:
>On the subject of Liverpool and spying - what are the long black "sensors"
>that are located on poles (sometimes a timber power pole, sometimes their own
>gal post) adjacent to the western siding to the south of this station?
I always thought they were light beam detectors to detect people
breaking the beam, but I have decided that is not very likely. My
current thinking is that they are large InfraRed Illuminators to aid
the visibility of the CCTV cameras.