The “certain circumstances” are clear. They include misreporting of a catch, and fishing directly for species subject to moratoriums. Those are two clear ones.
There are also provisions for those doing “directed fishing for stocks or species after the date on which the contracted party for the inspected vessel has notified the executive secretary....” So once you've caught your quota and you keep fishing, that's another one.
Fishing in a closed area or using gear prohibited in a specific area is another issue that would result in that.
Others are mesh size violations; fishing without valid authority, or having no licence; misreporting of catches; interference with satellite or VMS, so if you don't have your VMS on, that's another reason to be removed; catch communication violations, essentially the same thing as misreporting; and preventing inspectors or observers from carrying out their duties.
There are also provisions in the event that vessels are repeating offences, for which they could be removed.
So it's pretty comprehensive, and it gets at the major behaviours that can impact on stock conservation.