private security system compared to a public policing model

Order Description Discuss the historical heritage and undergirding of a private security system when compared to a public policing model. Are these systems rooted in a similar or vastly different mission? Secondly, why is it accurate to argue that the private sector system is not constitutionally based when compared to the public counterpart? What are the legal and functional implications for these two systems- one grounded in public constitutionality- the other, namely the private system inapplicable to this legal analysis?