Originally Posted by
Mizter T
I'm not sure that Swiss Tony's reply, helpful as it is, takes account of the (unique?)
Ryanair document check requirement for non-EU/EEA passengers - my (possibly incorrect) assumption is be that the document check can only be done landside (at what is effectively a check-in desk), and is not available for any airside connection routes through airports.
Indeed I wasn't aware of this, and the link you post clearly says "before security", which I would take to mean landside, given as noted Ryanair doesn't acknowledge the concept of transfer traffic!