A complex litigation lawyer is an attorney with skills and experience beyond that of a standard litigator, which allows them to be able to successfully handle cases which are characterized as complex. A complex case often involves extremely difficult or new legal issues, numerous parties, large amounts of evidence, and arcane or highly technical subjects. A perfect example of a complex case is asbestos litigation, which often involves large groups of people as well as complicated medical and scientific evidence. A complex litigation lawyer may pursue class action claims, which by nature are usually large and complex, and these cases are often much more detailed and time consuming that an average lawsuit. Because of this, a complex litigation lawyer may be referred to as an expert among experts, with legal knowledge that surpasses that of his or her fellow attorneys.