Note taking and seminar preparation

kinds of surveillance's : Biometrics, satellite and CCTV.
The power of technological advancement that goes beyond human logical thinking.
1.http://educate-yourself.org/mc/satellitesurveillance31jul03.shtml

The crime scene.
The murder shot the professor and stole a CD from her.
Here is a brief summary of the logical investigation and analysis starting from the crime scene and ended with the criminal arrest.
Every crime has a history which means that the crime scene should be available until police has taken all the necessary information for their investigation e.g. musk, Finger print ,hair, foot print and body fluids.They took the musk, fingerprints from the surfaces and passed it through chemicals , and then they focus Laser light or ultraviolet on sample to spot them. These data are saved on the database in order to be compared with previous known criminals.Even if the criminal was wearing gloves, through DNA which is the most reliable source and accurate way of tracking information,the criminal will be caught because the percentage to find two genetically identical persons is 1 in 60 million .the investigators gather any biological materials that might be left behind the murder e.g.,musk, Hair , dandruff ,skin Here the forensic scientists work on the monogram scale so they treat this sample to dissolve protein and leave DNA which is the nucleic acid that carries our unique genetic Also, they are very useful in case where they were identical with some one's DNA profiling on the database. And also the biological material could supply investigators with some information about the murder previous habits .Moving on to the electrostatic Lifting operator technique that depends on the static electricity which means the electrons transfer from material to another this approach is used to identify the footprint (what kind of shoes the criminal was wearing) .Gunshot residue which remains on the murder clothes is another tool for the investigation.Video identification procedure: in this method specialists analyze the face into data by measuring the distances between eye, nose and ear and compare them with those on the national database.
based on the Post mortem report of 40 years old professor stated that her life is taken out due to two bullets, one of them settled in her heart.The force linked intelligence system that pieces the evidence together through the computer .it is very powerful approach that connects the current crime with events that collected so far about a group of suspects so; one DNA sample can lead the investigators to a large network of suspects.The CCTV (Closed Circuit Television) and ANPR (Automatic Number Plate recognition) .There are huge number of the cameras that cover every street in the city and linked to the central police and the patrol police cars are also supplied with this technology which allow them to recognize the wanted vehicle automatically through its number plate.Crime costs the British economy about £ 50 billion so; the crime prevention is very important strategy. Prevention comes as first priority to protect innocent people. Biometric: recognizing people through their eyes which is more accurate than the finger print or recognizing their facial features. This technique is used in the airports, immigration centre and banks.So they store thousand of images on the database and use this software to identify people but it is difficult to do that in case of crowd and when the cameras are fixed at high position according to the person.Video surveillance in London underground and how it is useful to identify any suspicious or suicidal behaviors. Identifying unattained packages and prevent any terrorist attack. Another prevention approach is clothes, animal tagging and destroying stolen CD by remote device.

http://news.bbc.co.uk/1/hi/uk_politics/7634111.stm