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.
State and Local Law Enforcement Agencies. There are more than 17,000 state and local law enforcement agencies in the United States, ranging in size from one officer to more than 30,000. Many of these are municipal police departments operated by local governments, but there are actually several types of law enforcement agencies. Local Police includes municipal, county, tribal, and regional police that derive authority from the local governing body that created it.