What is a motion to dismiss?
Several kinds exist and they work differently.
Defects in the charging document — a charge that fails to state an offense, or that's brought under the wrong statute.
Legal bars — statute of limitations, double jeopardy, immunity including Stand Your Ground.
Undisputed material facts — the sworn motion described in the next answer, where the facts the State doesn't dispute don't establish a crime.
Procedural grounds — including speedy trial and, in some circumstances, discovery violations.
What a motion to dismiss is not: a way to argue the evidence is weak. That's what trial is for. These motions accept the State's version and argue it's legally insufficient, or they identify a bar that operates regardless of the facts.
Filing deadlines apply, and some grounds are waived if not raised timely — which is a reason to have counsel evaluating this early rather than after depositions.
These are deadline-sensitive. Some grounds disappear if nobody raises them. ---
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