I do agree that the War on Drugs is an abject failure and at odds with individual liberty, but I do not think it has much to do with this case. I suppose it can broadly tie-in only through talking about the distrust and anger that would result in all of the madness surrounding the case, where people are willing to reject evidence and embrace the most ridiculous conspiracy theories.
I do agree that fines for petty, victimless crimes are rampant and that local police departments around the country probably need more by way of tax dollars and less of these fines. Speed traps - changing the speed limit abruptly at the bottom of a hill, for example - come to mind immediately. I do not think that has much to do with this case.
I do not agree with the general militarization of the police... however... it was clear on Monday night that there was not a strong enough police force to protect the rights of the residents, and more force was warranted to curtail arson, destruction, and looting. Of course, they had declared a state of emergency and called in the National Guard, so perhaps that failure is arguably a military one and it lies with the governor.
I very much believe in the right to free speech and the right to freedom of assembly; "burn this bitch down" is not a matter of free speech, it is inciting a riot. Attacking the Ferguson Market & Liquor, again, and burning down AutoZone is not a form of protest worthy of any respect nor legal protection.