What I find so curious in that storyline.
SÖP is writing:
According to the complainants – parents and their two children - , they are citizens of Romania as well as Russia and have been living in the United Kingdom with a residence permit since 2015.
I am not a native English-language speaker. However, it reads to me that
both parents are Romanian citizens.
Frankly speaking - if this is true - at KIV all alarm-bells should have been started ringing when two parents (with Romanian EU passports) + their child (with a Russian passport) are appearing at the check-in desk in Republic of Moldova (which has both a troubling a history with Romania and Russia). This is aggravated by the fact that the Russian passport does not contain any visa, permit (whatsover, confirming a legal right to enter the UK).
In addition, two Romanian citizens are then starting to elaborate about some marriage certificate, which still needs to be certified in Russia ---> sorry it all raised suspicions.
Even as an underpaid contract agent I would have tended to deny this child boarding.
Another troubling statement from SÖP:
As a child of parents with Romanian and Russian citizenship, he by birth became a citizen of said countries, thus enjoying freedom of movement as an EU national.
I must say its quite a stunt from SÖP to claim being an expert in the citizenship laws of Russia and Romania in conjunction with Moldova. In that part of Europe citizenship rules are volatile, unclear, and complex.
Really, its not up to SÖP to come to such a conclusion. There is only one party who is allowed to make that conclusion: that is the relevant government authority of Romania. Apparently, they so far have denied confirming Romanian citizenship to this baby.