The Mutopia Project offers sheet music editions of classical music for free download. These are based on editions in the public domain. A team of volunteers typesets the music using LilyPond software.
State Law Enforcement. There are 66 state-level law enforcement agencies in the United States designated as state police, highway patrol, or state investigative departments. Most state police organizations were created between 1900 and 1930 and were primarily deigned to suppress the organization of labor unions.
Law enforcement in the United States. Law enforcement in the United States is one of three major components of the criminal justice system of the United States, along with courts and corrections. Although each component operates semi-independently, the three collectively form a chain leading from investigation of suspected criminal activity to administration of criminal punishment.