Speaking just as a BDM player - There never has been any requirement to explicitly write out justification for demands that are in line with ID permissions - a pirate would not need to say "Hey, I am a pirate and I derive income from selling goods and/or services that I have procured with very little overhead and at a massive discount - from you - please give me your cargo" so much as "give me your cargo"
An undercover freelancer MND character would not need to out themselves as MND by writing out that they are confiscating your xeno relics under Rheinland legal jurisdiction - just issuing a demand gives plausible deniability and the potential for being written off as a pirate.