PER CURIAM.
The petition for writ of prohibition is denied. Petitioners, defendants in the trial court, executed a written waiver of their speedy trial rights. Consequently, the strictures of Rule 3.191, Fla.R.Crim.P., are inapplicable at this stage of the proceedings. See Butterworth v. Fluellen, 389 So.2d 968 (Fla.1980); Gallego v. Purdy, 415 So.2d 166 (Fla. 4th DCA 1982).
LETTS and HURLEY, JJ., concur.
WALDEN, J., dissents with opinion.