High Quality Content by WIKIPEDIA articles! Inslaw, Inc. is a small, Washington, D.C.-based, information technology company. In the mid-1970s, Inslaw developed for the United States Department of Justice a highly efficient, people-tracking, computer program known as Prosecutor`s Management Information System (Promis). Inslaw`s principal owners, William Anthony Hamilton and his wife, Nancy Burke Hamilton, later sued the United States Government (acting as principal to the Department of Justice) for not complying with the terms of the Promis contract and for refusing to pay for an enhanced version of Promis once delivered. This allegation of software piracy led to three trials in separate federal courts and two congressional hearings.