Is our system guilty until proven innocent?

They claim the other way around but once they suspect, they stop treating you like you have freedom and the truth is that for the most part, you lose your freedom once the cuffs come on, from there you have no free will to walk out, at best case you are released and are forced to come back, if you refuse, then they arrest you, is that still freedom? The truth is that freedom (at least in my country) is just an illusion.
Is our system guilty until proven innocent?
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