Hmmm.... What white speed boats? We have been on the beach for the last 10 days pretty consistently and know not of what you speak.
We even phoned a few of our boat owner friends and none knew what we are talking about. The number of speed boats in Negril on a regular basis can be counted on one hand.
Motor boats are and have been regulated for decades. You can not simply "rent" a motor boat and take it out for a spin. You would need to have a boater's license, proof of insurance, etc.
Perhaps what they saw was some private boats that happened to be white in Negril from elsewhere on the island. That would be both legal and unusual...
