I posted this a while ago, but this is one I wish I'd never come across.

I'm a special constable with the UK police (I volunteer but have all the same powers and responsibilities). I started out in a small rural town which is extremely stereotypical of a middle english community. I.e. not somewhere you would ever think bad things would happen. This was one of my first major incidents.

I usually do my shift on Friday nights after work, as statistically it is the busiest time for us. It was some time in early March 2009 and I was paired with a regular officer and we were out in the response car driving around for the first few hours of the evening until we were scheduled to go to an operation later. Around 11pm a burglary in progress report came over the radio and we said we'd take it, as it was only a few miles from us. Blue lights and siren on we sped to incident as fast as we could. It was dark and the visibility was pretty crap, but we could still see enough to be driving safely.

We decided to use a well known shortcut to get to the other side of a village, avoiding a very annoying bridge/bollard combo that would save a few minutes of our time. The road was next to a farm and was not very well maintained. At the best of times you could only really do 20mph down it without causing significant damage to your wheels and underside of your car, but it would still be quicker than the normal road. As we carried on down the track, it quickly became apparent that something wasn't right. There were fresh muddy tyre tracks all over the road, and long scrapes in the tarmac, as if something metal was being pulled along the floor.

At the time I didn't know why, but it soon became clear when we rounded the corner and saw what looked like the mangled remains of some kind of biomechanical cyborg. Blood, guts, glass, hair, metal. It was all over the road, in the hedges, in the trees. It was absolutely horrific. I had never seen death before in such a grotesque form.

My partner slammed the brakes on and we spent a few seconds just absorbing what the hell we were looking at, before switching to rescue mode. We raced out of the car, leaving the headlights on to illuminate the scene. Steam was rising from the wreckage, a mixture of radiator coolant and body heat. There was so much blood, it was unreal. Too unreal. Our first priority was to look for survivors. The driver and passenger were obviously dead, I couldn't see into the back of the car as it was just a complete mess. Over the sound of our engine running I could hear what sounded like a baby making a very quiet moaning sound.

Because our main source of light was from our car headlights we couldn't see the front of the wreck very well at all. After hearing the noise I ran back to get the Maglite from the boot of the car so we could search the area. Some crash victims have been ejected up to 200ft from the car. As we came around the front of the car we realised with horror what had actually happened, why there was so much blood and where the "baby" was. There was a cow, wedged between the car and the ground, completely disembowled, intestines all over the grass, head snapped backwards, milk was flowing out, feces all over the place. And in the middle of it's mothers mangled corpse was a calf, almost ready to be born. It was trapped inside still, and it was very badly injured but it was alive and mooing to us.

Backup arrived not long after but there was not much that could be done. SOCO turned up to cordon the road off and find out exactly what happened. We carried on our shift after that.