Bush wires! Not required where we are going, but essential in places like jungle environments.
No.1 scenario - much the same as walking through a wood, if you're not careful that branch you've just pushed to one side will come springing back and whack the person directly behind you in the mush! Same driving on a track. The vehicle in front will push the overhanging bamboo or branches to one side, and your windscreen is directly in the line of fire as it returns to its starting position. Bush wires will in this case save untold damage to your winscreen, not to mention your face as minute shards of glass would head your way in this extreme circumstance (although not regarded as extreme or unusual in the rainforest).
No.2 scenario - even gentle off-roading can result in smashed lights, body damage to windscreen surrounds or obviously the glass itself, although this would only occur if driving virgin woodland, forest, jungle (i.e. setting up a new off-road course on Farmer Jones' land). Bush wires are definitely effective fending off overhanging branches in all circumstances, so proving a great investment.
Whether they are illegal or not is an extremely grey area. They are an aftermarket accessory after all, so the law is open to interpretation on such items. Bolt a chrome horse to your car's bonnet - is this illegal?
What about taking thing's to the extreme ... let's say you are a farmer and bolt a milk-churn holder to the front of your working Land Rover, and in the process of driving from one field to another you are pulled by the Old Bill. Is this accessory illegal or not? Nobody actually knows unless a case has been taken to court resulting in a prosecution, in which case a legal precedent has been set. Until then, I wouldn't thought it is illegal - and same goes for bush wires.
Taken further, bullbars (or nudge bars/roo bars) are an equally grey area. As far as I'm aware, the government hasn't banned the use of aftermarket bullbars on old vehicles, so although distributors can no longer sell bullbars*, there is nothing to stop an owners buying a secondhand bullbar and bolting it on their vehicle.
The point is, what's the difference between bush wires and a bullbar ... or an external jerrycan holder, roofrack, spare wheel carrier, winch bumper, or any other exterior accessory? I would say do it, but be prepared for some jobsworth Plod to have a go during a boring shift!
As the Crazy one says, they can be bought from B&Q. They are actually designed as fencing wire, complete with a windable tensioner to obviously make the wire taught. So, per bush wire you require an eye each end, a tensioner and the wire itself. Simple, effective, cheap, look the part (well, to us off-roaders at least) and oh so rambler-friendly! I know I'd love to garotte that meddling, toothy cow Janet Street-Porter on one - President of the Rambler's Association I do believe - as we all know the countryside was built especially for walkers and nobody else. Grrrr, don't get me started!!!
Ask me another!
* From 25th May 2007, Minister of State for Transport has confirmed it isillegal to continue to manufacture and sell metal bull bars that do notcomply with the new EU legislation (Directive 2005/66/EC) for pedestrianprotection.
Subject: Can someone let me know what these are called..... 
Thu Jun 12, 2008 9:25 am
lol
You haven't seent the lights I've got!! haha....I have 4 blue blatent ring lights on my roof and 2 strobes on the front, amongst other....the police have even pulled me over and said they like the lights and asked wot I do with the Paj 
I know it's a bit late but if your still interested they are called : BUSH CABLES 
perfect for hanging you wet towl on after showering on the rally 