why do cops block off roads when bad accidents happen?

Question

like one time there was 2 cop cars blocking this road and then i saw more cops up ahead of them.

Answer 1

an accident scene has a lot of evidence which needs to be documented. With people driving through the scene, evidence is destroyed. Or the road may be blocked and they are protecting the scene. Lets face it, when the general public rolls by a wreck, they are usually paying more attention to what the police and fire are doing than their driving. Keeping the public away is a safety measure for the public and all those involved. The wreck may be so serious that no one needs to see the results, or a chopper needs to land. Most of the time though it is to protect the scene. If they can safely allow a lane or 2 of traffic through they will, but if it is a serious of fatal wreck you can be sure they will establish a perimeter and block off the road

Answer 2

Serious and fatal incidents are initially treated the same as any serious crime. People may have been killed so a full investigation is essential. Roads will be closed for as long as necessary to gather evidence, take photographs and measurements etc. and also to clear away the wreckage. Roads also need to be closed to prevent rubber neckers from having crashes and to protect the emergency services from being run over by motorists.

Answer 3

Cops block off roads because the accident usually covers the whole road so cars can't get around it. So they make a detour.

Answer 4

They need to investigate the accident scene . Especially if there is an injury or fatality. The other reason is for the safety of the first responders (.IE: Paramedics, police department)and the people involved in the accident. Sometimes its also to keep the public from seeing things like someone who has died on scene from an ejection or something like that.

Answer 5

on an identical time as on Jungle patrol observed what appeared like 2 gold funds floating in the air (night patrol). i'm 6'3" and that they've been at eye point for me. i finished and in basic terms appeared at them and the different adult men signaled up asking why we had stopped. the guy precise in the back of me moved up and and in the ineffective of night i ought to hearken to him mutter and whilst they moved somewhat we the two opened hearth with all we had. something of the patrol hit the deck thinking we've been ambushed. The gold funds disappeared and we slowly approached. became out I had very practically walked precise right into a 24 foot long cobra that had raised up as I approached. We have been fortunate the pinnacle became intact sufficient to put in a sack and take back with us. The checklist advised me day after right this moment that if he had bitten me, i could have died precise there in the jungle.

Answer 6

To prevent those nosy ppl from driving by slowly to catch a glimpse at the same time causing traffic jams and getting in the way. I think it is called rubber-necking. ppl just love drama

Answer 7

To clear the debris from the accident, to remove the injured & dead, to allow emergency vehicles access to the scene, to gather evidence from the crime scene.
AA

Answer 8

Its also to protect the scene
So they can take photos of skid and tyre marks etc without anybody else driving all over any evidence

Answer 9

Its a police line to keep public out for investigation.

Answer 10

I think they shut the highway down when there's either been a toxic spill of some sort or when there's been a death.