Precaution steps when accident in traffic light junction

My mum meet an accident last night at the traffic light junction which is near to my parent's house.

When we tried to log a police report that we follow the green light by turn in to another road with hope that we are able to claim the other party's insurance for the lost that we had. However, the sarjan told us that this is a draw case due to the other party's lawyer will fight back the case by buy traffic system, etc.... even though the car owner admitted that he violate the traffice rules. Well, I noticed that the sarjan asked about witness of this accident, time of the accident happen, etc... However we fail to provide such a good evidence to prove that we are follow the rule... So I am wandering how to solve this issue.... as in Malaysia wide, there is only 7 traffic lights has camera and we are so unfortune that our traffic light don't have such facilities. Is our government so poor to place this kind of camera??

So I feel very uncomfortable if there is a accident that happen in the traffic light and cause road user die which the road user might not able to claim anything due to lawyers from the other insurance's company fight back the case by turning the right thing to wrong thing.

I think below are the few things we might able to do whenever there is accident happen:-

1. Take down the time (until second) of the accident happen

2. Get witness (usually car behind you) by getting their permission to be a witness. If they agree to be the witness, pls take their personal information such as their car plate number, name, IC#. Ask them what they see in the accident. If you have recorder, this might help a lot on our side.

3. Take photo of the incident. Remember not to remove anything before you take the photo.

4. Log a police report for claim purposes. Do not negotiate with the other party, if they tried to threaten you that MCB will be waive etc if you do this or that... You can log another police report on the threatening. For the repair cost, sometimes waive the MCB is cheaper than you spend on the repair cost... So just think about it..

5. Log police report within 24 hours (standard procedure) by provide all the evidence that we had taken just now...

Until now, this is what I can think of the steps to protect ourselves. If you have more inputs, I am welcome especially everyone of us are the road users. So pls be the witness if you can for any accident.. Even though the process is tedious, but you can help to make things right on the road...