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operators increase efficiency - UK
A UK surveillance group found their CCTV systems could help
solve more crimes if CCTV operators were well-trained and
located in a single dedicated CCTV unit. As well as staff being
able to identify relevant data quickly, better systems also
established strict evidentiary protocols, including secure
sealing of tapes and helping police provide a strong audit
trail. CCTV is most effective as a deterrent when potential
criminals believe that being recorded doing something illegal on
CCTV would be likely to result in police action.
IP cameras solve some CCTV problems - May 2008
IP cameras remove the need to dig trenches and lay cable-saving
organisations with large systems many thousands of dollars.
Image quality is also set to improve, especially compared to
older analogue systems, as increasingly high resolution cameras
come onto the market at ever more affordable prices.
Vandal and weather resistant-CCTV secure Irish towns
Advances in digital recording, wireless networks and tougher
cameras now allow CCTV cameras to be installed closer to ground
level, giving better image quality than otherwise would have
been the case. These weatherproof and vandal-resistant cameras
produce images that good enough to use as evidence in court,
even if recorded in low-light situations, such as under street
Managing changes to storage formats
The switch to digital storage raises the question of how legacy
data stored on tape should be securely archived to meet legal
requirements and to allow companies to find specific data when
needed. One company has decided to digitise their entire
collection of 3500 hours of data as part of a transition to a
tapeless, file-based workflow. The process is expected to take
around three months.
Distributed architecture takes the load off networks - January
One way to mange the potential for IP CCTV to overload networks
is to move to distributed architecture. It means letting the
cameras do the work of image processing and recording logic,
sending only the finished result to a central monitoring station
for any necessary human action or intervention, and for data
storage. For motion-triggered CCTV, for example, this means that
data would be sent for analysis and storage only when there is
some movement. In contrast, a conventional CCTV system sends ALL
data across the network for analysis at a central point, taking
up valuable bandwidth for hours of non-action. Because less
information is sent across a network from any single camera,
more cameras of higher resolution can be connected to one
central station, giving a more efficient security system.
The Italian solution
A wireless IP system connected to two fully redundant and
independent wireless communication centres in an Italian city
replaced an ageing, inadequate and expensive video CCTV system,
allowing police to monitor the city areas, using the modern
digital cameras with automatic motion tracking and 35x zoom in
day and night modes. Clever use of fibre optics backbones and
other innovations reduces the risk of loss of data due to power
outages, for example.
Ensuring CCTV data for evidentiary purposes - South Africa,
The collection and use of CCTV data in legal proceedings was
discussed at the iLegal conference in South Africa in 2008. Very
popular was a panel session that discussed the evidentiary
requirements for CCTV data to be accepted. This means the data
custodians need to be able to prove the integrity of their CCTV
system and the data collected. Courts would look for strict
protocols and procedures for capturing and securing data.
Watermarking ranked an important second to strictly enforced
procedures in the evidence handling process.
Solid state storage media - UK, December 2008
This article discusses the advantages and disadvantages of
solid-state memory (like a flash drive) compared with hard
drives. Solid-state memory is a more robust medium because it
can withstand very poor environmental conditions, including all
but the most extreme shock and vibration. Failure is less likely
because there are no moving parts that could fail. It is already
being used as a back-up medium for CCTV data, and for
transferring CCTV data to a PC.
Overview of options for encrypting your back-up data -
Australia, September 2007
This older article presents the options for securing back-up
data using various methods of encryption-software-based
encryption, in-line encryption, and drive-based encryption.
Options for safe and secure password management - USA, November
Good control of password access to CCTV computer systems is
widely considered to be essential. This review of covers nine
products and provides a very brief overview of the general
factors you should consider before buying specialised products.
Links to reviews for each to the products tested are also
Malware an increasing threat - December 2008
Malware-spyware, viruses and scams-have increase by a factor of
ten in the 12 months to December 2008, according to one software
vendor. The trick is to keep software up-to-date, use good
security software, and be careful of what you choose to click
on. As CCTV moves to network-based solutions, the need for
vigilance will only increase.
Physical security needed for networks - January 2009
As well as the guarding against hacking, malware and other
software threats to a CCTV network, managing the physical
security is also essential. Only those with the need and
appropriate clearance should be able to access CCTV or other IT
Technical Considerations Associated With Deploying CCTV
A description of the most common technical considerations which
must be addressed at the outset of any CCTV project.
Managing risks to CCTV data and systems
CCTV systems collect all types of information for a wide range
of reasons. While the equipment is valuable, it is almost always
the records, and the information they hold, that matter the