The procedures required for full colonoscopy certification (minimum 100 after provisional certification is awarded) should be independent.
These procedures are designed to allow for a period of distantly supervised autonomy - a managed independence. The focus of training should be on decision making, list management and consolidation of skills within a formative framework.
The skills and KPIs of these procedures reflect actual performance in practice: including decision making and performance when working alone and not with a trainer observing and making decisions in the room.
Although all procedures completed after provisional certification is achieved are counted towards the lifetime procedure count for full colonoscopy, the assessors would expect that almost all of them are recorded as independent.