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Archive for August, 2013

Types Of CCTV Setup

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DataReplayServices - Experts in CCTVIn recent times, CCTV systems have received a great deal of interest as security has become a significant issue to most people. There is a huge demand for CCTV security systems not just in the United Kingdom but also worldwide. Let us look at some of the most important considerations concerning CCTVs so that you can understand the fundamentals.

Image Resolution
An important thing to consider is the quality of video and image resolution the system records in. Resolution is generally measured in TVL (the number of television lines produced by the cameras. If you want a CCTV system that records high resolution video and still images, you’ll require one with a TVL level towards the top end. If you think there’s a chance you’ll need to use the video recorded images in court (eg. in case of robbery), be sure to buy in a high resolution camera.

The Types Of Available CCTV Camera
Avoid getting the first setup you see. It is vital that you have a basic of the different types of camera on offer so you’ll know you’re getting the correct one for your business.

1. Standard
Standard types of camera are affordable and produce decent enough quality video and still images. One downside is that a decent source of light is necessary in order to get decent quality images. This means that these types of camera are virtually useless at night.

2. Infra Red
Infrared CCTV setups are able to see in darkness. This makes them a very useful security tool. Money is will be saved on lighting and you’ll have system that provides high quality video and images regardless of the conditions.

3. DVRs (Digital Video Recorders)
DVRs produce good quality images and are ideal for finding and viewing specific moments in time. Many DVRs will let you to remotely monitor the footage recorded from anywhere using the net.

4. PTZ Setups
PTZ cameras otherwise known as Pan, Tilt and Zoom can be remotely controlled. These cameras often housed in mesh housings and are controlled by monitoring companies in the area.

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August 23rd, 2013 at 12:04 pm

Posted in Computer Crime

Computer Investigation

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Computer Crime: What Does A Computer Data Forensics Investigator Do…

A person using a computerComputer (or ‘cyber’) crime is growing. As reported by police briefings, the number of computer forensics cases has been progressively increasing year on year. In the beginning, the industry literature used the term of computer forensics to specify the specific part of forensic science dealing with the study and retrieval of various material discovered in computer systems. The field expanded to digital forensics to include the examination and research of all the devices that are able to store electronic data. These kind of investigations are generally conducted in relationship to a crime, which is why it is essential that the computer forensics investigator to have the required training, but also a strong experience in the field. The responsibility of such an investigator is different from that of a system or network supervisors.

The most usual application of digital forensics investigations is usually to discredit or support hypotheses before a court of law, either criminal or civil. When it comes to digital discovery, an investigator can also be beneficial in the private sector, along the lines of corporate security and internal investigations. No matter what the case, the work of a computer forensics investigator follows a standard procedure that starts with the seizure of storage devices and continues on with its acquisition, also called forensic imaging. It is very important that the investigator has as much information as is possible before going through these steps. A very first step is frequently interviewing any individuals who can supply information in connection to the case.

The specialized processes start with the acquisition of the volatile evidence, which is the data which might change or vanish swiftly if incorrectly handled. After this step, which is often difficult to conduct, depending on the amount of access the investigator has to the computer or digital equipment. After that comes the acquisition of physical storage, including memory cards, hard disks, removable disks or USB hard disks, which will be forensically imaged, in order to ensure the continuity of the operational system, whilst additionally using the devices as evidence.

The world of digital forensics is fascinating, but it is also complicated and demanding. A good computer forensics investigator should not only be highly trained and experienced in the field, but additionally ready to step out of the technical world and into the courtroom. Testifying is normally the most demanding part of an investigator’s job. In court, you need to have the ability to translate the technical forensic language to situational basics that people can fully grasp. No matter how perfect an investigation, a poor presentation in court can easily kill it.

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August 20th, 2013 at 10:29 am

Posted in Computer Crime