On 8 December 2022, the European Council has adopted a resolution on not accepting Russian travel documents issued in Ukraine and Georgia.
I'm wondering if the Frontex (European Border and Coast Guard Agency) or other EU security services can differentiate these "passports" from legitimate ones issued on the territories which are currently recognized as belonging to the Russian Federation.
From the common knowledge, travel documents have Issuer (Passport Authority) field. However, nothing prevents a perpetrator from issuing a travel document elsewhere deep on Russian territory.
Or even use a specially crafted Passport Authority #777001, like they did for Salisbury Novichok terrorists in the past.
Correct me if I'm wrong, but according to what I read in Ukrainian news, there is no evidence to assume that the russians have established Passport Authorities in Ukraine or Georgia, at least publicly — for obvious reasons.
Note: There are two kinds of documents both called "passport" on Russia — one as a proof of citizenship and another one, "international passport", which is intended for traveling abroad. They widely spread the "citizenship passports" while I'm talking about the "travel passports", of course.