The most complete definition I could find for Liberty, that doesn't make you cross reference other complexly defined ideologies, like "oppression" and "despotism", reads as thus:
Liberty -noun : Freedom from control, interference, obligation, restriction, hampering conditions, etc.; power or right of doing, thinking, speaking, etc., according to choice.
Now Compare that directly with this:
Police -noun : The regulation and control of a community, especially for the maintenance of public order, safety, health, morals, etc.
How exactly can the freedom from control coexist with the direct regulation and control of people? It simply can't. Liberty can't and simply doesn't exist with professional police patrolling the streets.
An Illinesian already told me today that Liberty doesn't fit into a Social Structure. What this Illinesian didn't understand, is that Liberty is a social structure, one in which self ownership is acknowledged by everyone, and no one pretends to have more authority over you, than you could possibly have. Not only is this a very valid social structure, but it is also the most ethical social structure that could possibly exist.
Don't lose sight of Liberty like most who live in Illinois... and don't let men claim ownership to your life.