I would start by searching for
Legal InsuranceQUOTE (YorkshireLad6 @ May 11 2007, 5:11 pm)

I would suggest this insurance is a necessity for dumb foreigners, especially those new to the place. It's all too easy to get caught out because of ignorance, because of a bad purchase, a vehicle accident a neighbour dispute, or a battle with your landlord and this is the insurance that saves you. I have a very, very comprehensive legal insurance which is worth its weight in gold, having helped me get out of, or minimise financial damage from things as simple as parking fines, via complex insurance claims to software counterfeiting. It's something you need from the outset, because once you have a problem to solve you can't buy it retrospectively.
It seems that you can't purchase it retropsectively though. Hope that helps