Legal Question in Criminal Law in Florida

There's no way to specifically answer your question as the viability of evidence varies and can be impacted by a number of environmental factors, such as the manner the evidence was obtained, maintained and preserved.

If you're worried about preserving the evidence to protect yourself, I suggest you speak with your attorney about how to best go about securing access to the baggie so as to ensure you have the best opportunity to have an independent analysis performed. If, on the other hand, you're worried about the print being used against you, you should look to what efforts the government has taken to secure this evidence and what your attorney may be able to do to challenge the evidence.

Good luck.