Crime prevention
Police work
What is the PNC?
PNC stands for ‘Police National Computer’. The first PNC started in 1974, the only information that it contained was the stolen vehicles database. Since the start of the PNC more databases have been added or changed. The PNC several separate databases these include:
· Names file- This database contains a very large amount of information about people who have been convicted caution or recently arrested. This database has links to each individual person’s file which contains fingerprints, DNA and contact details. Recently arrested people referred to as Nominals, can be placed on the PNC at anytime under ‘wanted/missing’ if they are connected to a crime, are on a warrant or if they have failed to appear at court. They may also have been put on the PNC if they have been Absent Without Leave from military service or are reported missing. Any previous arrests and convictions will appear on PNC database along with any impending offences which are awaiting court. Information stored on this PNC database may include: a physical description, all previous addresses, local intelligence or any co-defendants.
· Vehicle file- This database contains details on the registered owner of a vehicle as well as any information from the DVLA as to a vehicles status for example: Tax expiration date, whether or not the insure submitted a valid V23, if the car is stolen, Chassis number or engine number. The police can add reports to this database if they are related to the vehicle or the owners status this might happen because of a number or different things some of which may include the vehicle being stolen or reported missing, if the vehicle may be a clone or if the owner is believed to have something to do with a crime. In the database the system is currently linked to the Motor Insurance Database and maintained by the Motor Insurers Bureau. This allows the police to look up and confirm insurance policies and details about the driver which includes the driver’s name, policy dates, police number and which insurance company the driver is insured by. The Vehicle Operator Service have updated their MOT databases and digitalised them because they have done this direct links can be made from the PNC to the MOT database. The vehicle file actually has two separate databases that are shown on one screen. One database is updated by the DVLA and controlled by the DVLA, the other database is updated and controlled entirely by the police and is the responsibility of the police. This database contains vehicle reports which the DVLA do not have access to.
· Property File- This deals with different types of stolen and found property which can be put on the PNC system giving a description of each item. Each item that is lost or found can be separated into different categories, these categories are: Trailers as well as sidecars, Plant which is non-DVLA-registered agricultural machinery, Engines which do not fall into any of the other categories, Animals which have been registered, Marine crafts and Firearms which includes imitation firearms.
· Drivers file- this database has been recently added and it contains information on over 48 million people who either hold a valid driving licence or are disqualified from keeping one. Each record will have information that relates to test passes, endorsements and the licence entitlements. This database is the responsibility of and is manage and controlled by DVLA and is updated every single morning.
The PNC is only a text document so there are no photos stored in any of the databases only digital data. However further inquires can me made which allows the police officers looking for photographical information able to access copies of photos obtained in crime scenes or whiles in custody. Until 1995 the PNC was more mainly a data storage warehouse but with the surge of technology it has become solely internet based to give information on on-going investigations. This has enabled police to search the PNC databases for information on criminals, suspects, vehicles or any other information may be stored in the PNC, with only limited pieces of information such as surnames, number plates or other bits of information.
E-FIT
E-FIT stands for the Electronic Facial Identification Technique. This is a digital method of using eyewitness’s descriptions of suspects, wanted criminals or missing persons to construct a 3D visual image on the computer of the person. E-FIT is used to identify people for serious and minor crimes. In the UK, the BBC TV programme called Crimewatch uses this feature quite often. The most known time it was used in Crimewatch was when a presenter themselves fell victim to a stalker. E-FIT is a system which is available in many different languages such as: Spanish, German, English UK and US, French, Italian, Portuguese and Swedish. The first E-FIT system was introduced in the late 1980’s By John Platten and since then he has been improving and refining the system working with Dr Matthew Maylin. E-FIT is a highly reliable and easy going system for facial reconstruction. The E-FIT system is slowly being replaced by the EFIT-V. This is a full colour system that increases flexibility and the speed of the face rendering software. This allows the EFIT-V to give a full colour 3D reconstruction of a person’s face.
· Communication between all the different police forces and international (Interpol what do they do?)
· What do police carry equipment wise? Do they have smart phonesà standard police equipment
Police equipment
Giving the new advances in technology you would think that police equipment would be updated to include the latest smart phones and tablets but this is not the case, this is because smartphones would be to easy intercept messages and to bug and eavesdrop on confidential conversations. The standard police equipment for an average police officer is:
· Body armour- body armour is compulsory equipment. This protects the police officer if they get attacked while on patrol. It offers protection against knifes and some types of firearms. The body armour is made by placing special ‘pads’ inside the outer cover this helps to take the impact of forceful blows i.e. stabbing or shooting, and because the outer cover is black they can also be used in covert operations underneath clothing to help keep them safe.
· Handcuffs- hand cuffs are a vital part of police equipment. They can be used when the police believe the suspect or suspects can be acting dangerously, they are trying to escape or if there is any danger to the police officers themselves.
· Batons- the most commonly used type of baton is called the ‘PR24’ this has a side handle and can be extended to 24 inches long. Batons are carried by police officers to protect the public by using special defensive blocking moves and offensive striking moves. The baton can also be used to subdue a violent person.
· Air wave radios- The police carry Radios on their person these can also be used as mobile telephones; they can send and receive text messages from it. The radio channel that the police use has been specifically designed so that confidential phone calls or text messages can be picked up and recorded by other people using scanners. The radios themselves have a built in tracking signal which is connected to the head Control Room. This means that if an officer need emergency backup or help all they have to do is push an emergency button on the radio and help will be sent to their exact location as soon as they get the emergency signal.
Car crime
· Number plate recognition- Automatic number plate recognition or ANPR for short is a huge surveillance process that uses optical character recognition on images this allows them to read number plates (vehicle registration plates). The ANPR can use existing closed-circuit television, road-rule enforcement cameras or cameras that were specifically design to recognise number plates. This is used by many police forces to keep track of the electronic toll collection and to make sure that movement of traffic and/ or individuals is recorded. ANPR can also store the images that they capture and some have been specifically modified to capture a photo of the drivers and this can be used with facial recognition software to get an exact identify of the driver even if the car is licenced to someone else. The ANRP system uses infrared lighting in order to take photos at any time of the day or of the night. The problems that have risen because of this are that some people are afraid of the government tracking their movements, misidentifying them because of the high error ratio and waste in government spending.
Cyber crime
In today’s society the internet has become a huge window of access to criminals. One of the most often offences is theft of data. The reason why criminals try to steal or copy data from large businesses is because if they can get their hands on the data then they can sell it to other companies or use it to blackmail the company the stole it from. If a company’s data gets stolen then the company has to start collecting the data all over again wasting valuable time and money collect , processing and analysing the data.
Phishing
Phishing is when someone sends fake e-mails pretending to be from legitimate companies and businesses to persuade people to divulge personal and financial information. They do this by sending emails to lots and lots of email addresses which they have randomly selected by randomly generating addresses or by guessing popular and common email addresses. Each email will either have a link to a website that may have viruses or just looks like a professional website or the email itself will contain a virus that will attack your computer and copy files and programmes and/ or delete the files.
Identity theft
Another danger of criminals stealing data is that they can steal credit card and bank account details, which means they can impersonate and steal the identity of a persona and take money out of the account. All it takes is for someone to hack into a website and download all of the personal data that customers have given to that company and the hacker has everything they need to impersonate the customer and find out personal details about the customer.
Anti-virus protection
You can protect your computer against viruses with anti-virus software. Some examples of anti-virus software are ‘Kaspersky Internet Security’ and ‘Norton security software’. This scans emails and programmes before you open them and gives you detailed reports on each file, programme or piece of software. They also can block harmful websites that carry viruses on the web.


