You'd think so, right? Yet in an article I linked upthread the USVI LE said they would have to present probable cause to the court in order to secure a search warrant. What the heck?
USVI police spokesman Toby Derima added: "We would need to get a warrant to search the boat. We would need to show the court that we had probable cause to search the boat, as this is not yet a criminal case.
"We thought we could just ask Mr Bane to search the boat and he would say yes and he didn't. That is his right. Getting the search warrant would be the next step, however we are still searching, doing regular inspections of the areas and speaking to potential witnesses."
Sarm Heslop's boyfriend refusing to allow search of yacht from where she disappeared, police say
The Coast Guard search was likely a cursory one where they were looking for Sarm (or a body) concealed somewhere on the boat. That's way different from a forensic search where LE would use Luminal and check for fingerprints and other possible evidence. I'm pretty sure LE would have adequate probable cause here on the mainland.
So in terms of strategy *IF* someone had something to hide a CG search would be better for them. And while I disagree I grudgingly admit that *IF* there is corruption in local LE then yeah, getting a lawyer and closing up shop is the best move - for Ryan Bane, not so much for Sarm. MOO.
A quick Google search on LE corruption in the USVI does reveal some upsetting hits. How that would tie into this case is unknown.