Who brought Jacque? If Frances paid for Jacques bunk, and is paying his salary, Jacque is not in service to the vessel even if he bakes some cookies for the rest of the passengers. This does not happen on US boats, as if Frances has too much dough, Jacque will cook on the yacht and the liveaboard will follow behind. That’s called buddy boating and is common.The DM provided by the shop is not in service to the vessel as long as they aren’t filling a manning requirement. For instance, many liveaboards in the US have 2 dive ladders, and a DM manning each one as divers come back. They are likely the deckhands.
If the shop uses its “free spot” (again, common in the US) for the shop DM who guides the dive, helps the customers with their cameras, and interfaces with the crew on the customers behalf, or maybe runs an advanced class, they are definitely not in service to the vessel and have no requirements for training, boat insurance, etc.
Some shops sell their free spot for extra profit. I didn’t like it, but I understood it.
Great explainaton wookie. This would have been handy to have in other threads concerning DM's showing only the AOW card when using a boat as a passenger. So many arguments regarding liability etc. Every time it happens the opposing arguers are viewing from different perspectives. In this case showing an AOW card makes it pretty clear as to what capacity the shops DM is fillng when he goes on board and the relationship tto the ship. Certainly there other considerations but if he remains true to only being there as a AOW theem he can not be expected to provide those ships services. Being in the water is a different matter If he is leading a group he may be considered as a DM by the services he is providing for the diver group or shop whether is is related or not to the boats provided services.