Which factor leads to a strong personal injury case? Attorney Leo Ghantous explains that the first and most important factor is evidence. It is absolutely necessary you take immediate action to preserve evidence. The kind of evidence you need depends on what kind of case it is; in certain cases you may have to hire a mechanical engineering firm for expert opinions pertaining to mechanical problems. You can enter into a contract to store a vehicle in such a way that you can later use it as evidence, if you contaminate the product, you may not be able to use it as evidence. You may not be able to refer to it - therefore you have to preserve it in such a way that it maintains its true form. For a free case evaluation, contact attorney Leo Ghantous in Peoria, Illinois, or visit his website at www.ghantouslaw.com.