I think the answer is yes, until the statute of limitations runs out, but I am going to defer to criminal defense attorneys and re-post this question so they will see it. Good luck.
Not sure what you mean that the "DA dismissed the case." If it was filed in court, the DA can move to dismiss a case, and if the judge then dismisses it, it is gone. If the DA, prior to filing the case in court, decides not to file it, they then still have a year from the event to decide to file it.
While I do agree with the answers provided, I can elaborate a bit more. If you are really wondering whether a DA can still prosecute a case after a misdemeanor dismissal, the answer is 'yes.' It would depend though on the nature of the charge and why the case was dismissed. There is a distinction between dismissals pursuant to Penal Code 1385 and 1387 - to give you just one example, if it was a domestic battery and a key witness was unavailable. Also, if the DA dismissed the case because a felony charge may lie, that could be a possibility as well, or just another misdemeanor re-filing, if done within the appropriate statute of limitations.
Most often, a dismissal can be because there is insufficient evidence to move forward -- and if that is your case, as my colleague advised, it is a good thing for you, and I wouldn't worry about it. If we knew more about your charges, and why the case was dismissed, it could provide more insight into whether there might be a refiling.
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