The police protect private property, not citizens. It is in the guise of protecting citizens that police powers are 'sold' to public, e.g., The Patriot Act, even though Federal, is an example of using peoples' fears to enact legislation that is clearly a governmental overreach.
The pluralism of democracy, also known as an 'adversarial legal system', purports to equalize the distribution of rights and responsibilities via the untenable solution known as 'shared sovereignty', which is an oxymoron; there cannot be two (or more) supreme powers, hence the continual battle between states, people v. states, states v. Feds, people v. organizations, all believing in their individual sovereign rights.
The US Constitution is a contract. It is a business concern, and started as such. And if you really want to understand why the history we're taught is propaganda, read "An Economic Interpretation of the US Constitution" (among others) and you will see that English aristocrats re-created England here, with themselves as new royalty. Civil law v. criminal law: the former is for the well-to-do and revolves around Fourth Amendment protections of personal papers etc, because these types of cases are between individuals and are about fraud and who can push their adversary into bankruptcy and take over their business.
Bernie Madoff is a criminal only because he acted outside the protected game of financial markets. Otherwise he'd be getting billion-dollar bonuses from Goldman-Sachs or Lehman Bros. I guess he didn't want to share.