Can't have the audio activated on mine, some of these prats on the road induce some choice language which I keep within parameters of the car
Comment from the police, when I have sent them video to back up an incident - They are well used to the language, it adds to the situation, rather than detracts. Activate the audio and make a point of recording a commentary if you see a situation developing.
One of my reported incidents was on the M62, in heavy traffic around Manchester, with a 50mph limit whilst I was towing back home from Pembrokeshire. Everyone was behaving themselves perfectly, except for one maniac driving a large LGV. He was tailgating, switching from lane to lane, bullying is way in and out of the lanes as he switched by moving sideways into the sides of other vehicles. I had been watching his progress for several minutes coming up behind me as did this numerous times, made comments on it for the audio with every intention of reporting his driving at my first opportunity. I was in L1, he eventually came alongside me in L2, he was 6 feet behind a 4x4 the driver of which was obviously looking distressed being followed so very closely. The LGV driver saw a small gap appeared ahead of me, so to get out from behind the 4x4 he swerved sideways as if to deliberately force me off the road. SWMBO, pre-warned by my commentary screamed, I had no choice but than to brake heavily, or be hit by the side of the LGV and he pulled into L1. I added the name on the side of the LGV, the registration number, colour, make and etc.. just in case the cam failed to pick it up.
I caught up with him once clear of the 50, on the climb up to the Pennines and was able to add a description of the driver to the audio. The police said that my commentary on his progress before he came alongside me, sealed his fate and confirmed his actions were deliberate. Without that, his just appearing to pull into the side of me, could have been a simple accidental occurrence - his failing to realise I was there.
Once home, I rang Manchester police who asked me to email the entire video sequence ASAP.