It comes after claims emerged that protection officers "turned a blind eye" during visits to Jeffrey Epstein's island.
Former protection officers to Andrew Mountbatten-Windsor have been asked to consider if anything they 'saw or heard' may aid the Metropolitan Police.
The Met says it has not identified any wrongdoing by its protection officers "at this time".
The inquest heard that the half Ironman event was cancelled the day before because conditions were deemed unsuitable following Storm Betty.
Andrew Mountbatten-Windsor has been released under investigation following his arrest on suspicion of misconduct in public office.
Met Police officers provided security at Epstein dinner party attended by Andrew, emails reveal - Close protection officers ...
Add Yahoo as a preferred source to see more of our stories on Google. The former prince has come under renewed scrutiny in recent months over his past ties with convicted sex offender Jeffrey Epstein ...