A private investigator (often abbreviated to PI and informally called a private eye), a private detective or inquiry agent, is a person who can be hired by individuals or groups to undertake investigatory law services. Private investigators often work for attorneys in civil cases. A handful of very skilled private investigators work with defense attorneys on capital punishment and criminal defense cases. Many work for insurance companies to investigate suspicious claims. Before the advent of no-fault divorce, many private investigators were hired to search out evidence of adultery or other conduct within marriage to establish grounds for a divorce. Despite the lack of legal necessity for such evidence in many jurisdictions, according to press reports collecting evidence of adultery or other ‘bad behaviour’ by spouses and partners is still one of the most profitable activities investigators undertake, as the stakes being fought over now are child custody, alimony, or marital property disputes.