If this is your plan- you need an attorney.  Miranda warnings are an area that most non-lawyers have heard of.  That does not change the fact that this area of law is nuanced and case-specific.  There is no requirement that Miranda rights be read by law enforcement during every encounter (or even every arrest).  The only way for you to have confidence in knowing whether and how potential misconduct by law enforcement affects your case is to speak with an experienced attorney.  We are here for you.