A vowel is that which without impact of tongue or lip has an audible sound. The Poetics of Aristotle by Aristotle View in context. J is a consonant in English, but some nations use it as a vowel --. The Devil's Dictionary by Bierce, Ambrose View in context.
More commonly, these positions can be grouped under the title of law enforcement officers. A Peace Officer is any person who works in the public-sector and whose responsibility is to uphold the peace. Types of Peace Officers may include customs officers, police officers, sheriffs, probation officers and the like. It is the daily duty of these professionals to uphold the law and maintain the peace in the jurisdiction in which they work.
Any individual who has the power of a public civil officer or inferior judicial officer, such as a Justice of the Peace. The various state judicial systems provide for judicial officers who are often called magistrates, justices of the peace, or police justices. The authority of these officials is restricted by statute, and jurisdiction is commonly limited to the county in which the official presides.