For those who have played GTA or those who have seen Miami Vice are aware that there is a cop car in almost every movie, which is super-fast accurate and above all a nice alarm (siren) and three lights can be located above the roof of the car right? That particular police lights for sale is for police car only and requires special permission for anyone to install anyways.
Siren is there to tell the civilian to stand back hang on police car is on the chase, there are certain rules to use the same three lights philosophy which means that even police cannot just turn it on and move the car wherever the police wants. There are certain rules which are given below; rather these are the circumstances under which the police can use the three lights mantra given below:
Chase: this is exciting right? But whenever the police is chasing somebody the driver (sergeant) ultimately has to turn on the siren with the 3 lights above the head of the roof in order to make people understand that something is wrong and they need to stay alert cautious and must stay out of the way. Although still in case of any causality police will be held responsible but still the 3 lights are there to tell the people to stay away off the road. Visit https://www.redfleetsafety.com.au/page/sirens-and-speakers/ for police sirens for sale.
Stopping: if the police car wants to stop any culprit car the siren must be buzzed once and the driver must understand that the cop wants him to stop wherever he/she is with the car. Hence it is required for them to obey the law and stop the car right away. Moreover, they as a cop cannot just hit the siren and irritate people they just need to buzz it once and incase the targeted car doesn’t stop then they have a right to hit the horn and turn 3 lights on.
Patrolling: during normal patrolling police car is not allowed to hit the siren they just can turn on the 3 lights and tell the public that police is active and they are looking for some suspect or something suspicious has been detected due to which police is ready for action 3 lights indicate this in front of everybody that they are there to protect everyone and they are alert. So there is no need to worry.
All in all the above mentioned are some rules to use the 3 lights mantra which we all have seen above the head of a police car, now we are aware of the meaning and the situation under which they should hit this siren.