A class action lawsuit can be used when a number of people wish to participate in a lawsuit but the class is too numerous, or it would be too expensive to try each case separately. These individuals commence a case and retain lawyers to represent them and retain a class representative to represent them and the class. An example of this is hundreds of people who suffer alleged employment discrimination, including sexual harassment and wage and hour violations are now pursuing their job rights through class action lawsuits. In addition, class action lawsuits are also available to challenge a policy or interpretation of a statute or regulation, such as in a Medicaid case.