Need help with a problem concerning the Liberty-Rheinland trade embargo

[jdftheman]

Like the titel says, i have a problem with the embargo between Liberty and Rheinland. My trader has both tag and ID belonging to Interspace Commerce, and i usually fly between new berlin and cambridge.

Now about 15 minutes ago i was ordered to stop by a Rheinland police officer, who said that because i belong to a liberty company, i am not allowed to transport anything but passengers into rheinland. I have come accros alot of policemen in rheinland, but this was the first time ever that they made me stop for that

Now i am wondering, am i, as a member of interspace commerce, allowed to transport more than just passengers in rheinland, or is he right with stopping me?