In Defenders of Law, Inc., players choose to be one of five star litigators (Sophie, Margaret, Mark, Philips or Jane) within a criminal law firm hired to defend the main suspect in the murder of Miss Rosevolt. Each game begins in the courtroom as a judge awards the attorney 15 days to search for evidence to defend their client in the next courtroom session. Players must examine multiple witnesses and search for evidence such as fingerprints, footprints, and blood samples using the hidden object game mechanic, and then analyze their evidence in the lab. Evidence gathered in the lab is then presented on a deck of playing cards, which players use to face off in an intense card game against the district attorney. The winning hand reveals the final verdict and the ultimate fate of the defendant: is he guilty or innocent? Play the game again and again to reveal a different outcome of the story each time.