Attorneys for two former employees of disgraced financier Allen Stanford are seeking the dismissal of charges that they illegally shredded thousands of documents in Florida.
A hearing on the issue is scheduled to take place in a Fort Lauderdale court Tuesday.
Lawyers for Thomas Raffanello and Bruce Perraud say prosecutors tried to intimidate a witness so he would refuse to testify for them. Raffanello was Stanford's security chief and formerly a top Drug Enforcement Administration agent in Miami.
Prosecutors flatly deny the allegations of intimidation.
The witness has invoked his Fifth Amendment right not to take the stand for the defense. The defense wants the case dismissed unless the witness gets immunity from prosecution.