If you have a reasonable suspicion that a captain listed on BoatBooker is not licensed for whatever reason, you can anonymously let us know at verification@boatbooker.com. We take such reports seriously and investigate every claim.
Please keep in mind that there is only so much that we can do in these cases. We would urge you to report any incidents and such suspicions to the USCG, NOAA, or any other agency (if applicable).