They are also available to back up other units, as they are constantly roaming an area as part of their high visibility patrolling work.
Components of the system: Whilst on patrol, a police officer who observes a blatant offence or an example of bad driving can record the incident on tape.
Depending on the circumstances of the offence, the motorist can then be advised regarding their driving, cautioned or prosecuted, when the video recording can be used in court if necessary.
JAI PROVIDA 2000 is a sophisticated in-car video and speed enforcement system for 24-hour detection of traffic offences and criminal acts.
Many main roads in the UK now have horizontal lines of about two feet in length painted on the carriageway, which allow the VASCAR system to be calibrated.