what are the statue of limitation for conspiracy drug charges and currupt organization charges?

Without much by way of facts, I would guestimate five years from the date of the offense. In addition, if the Government needs to obtain evidence from out side the United States, a statute of limitations can be extended.

Re your question as to whether the federal prosecutor has an interest in your case, your current attorney might have a sense as to why the charges were withdrawn. Is this because there is a federal investigation and likely indictment or because there was insufficient evidence.

There are too many variables, so I cannot possibly answer this question in an appropriate manner without much more info on your case. If you'd like to discuss this further, please let me know.

(Please note that this response does not constitute legal advice nor does it establish an attorney-client relationship.)

The general statute of limitations for federal crimes is 5 years from the date of offense. In conspiracy cases, the statute of limitations does not start running until the later of (1) the conspiracy ending (usually by conspirators being arrested), or (2) a defendant withdrawing from the conspiracy. Withdrawal requires an affirmative act (more than simply stopping participation in the illegal conduct of the conspiracy).