Check out my answer to your last question....
Based on these facts alone, it sounds like you may have some good factual arguments to aid in your defense - as to the DUI. Your attorney (either hired or appointed) should be able to give you a better idea of your chances, though, once (s)he analyzes all the relevant evidence. Obviously, since it appears you did have alcohol in your system, you're going to have a rougher time fighting an underage drinking charge.
Miranda probably does not matter but talk to your lawyer about what happened to be sure.
You need a DWI/DUI lawyer.
You were way over the legal limit of .00 for an underage drinker.
Can you get out of a full-blown DUI, perhaps.
You need a DUI / DWI lawyer. Now.
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If this was in Irvine, I'd like to discuss this with you because you raise some very good points. Keep in mind that the driving, although not observed by the officer, can be proven through circumstantial evidence. The good thing is they usually don't ask when you were driving, and that's important when the DA is trying to prove that your BAC (.06, .07, and .08) somehow indicates your BAC at the time of driving. I'd love to talk directly with you, the call is free.
Check with a CA lawyer. But if u are under 21 you are likely not legal to drink any alcohol. That may work against you but does not mean you were impaired.
It is possible that you can be found not guilty in front of a judge if your fields sobriety test were good. If it's your first offense you may be offered a first time offenders program such as probation before judgement.
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