http://www.policeone.com/investigati...eign-Citizens/

"4.) Watch for Fraudulent Documents
Sovereign Citizens can be an investigative challenge. Much of their personal identification information, such as birth certificates, driver’s licenses, or vehicle tags are fraudulent documents. When asked to provide a name, they may respond that they don’t have a name.

They may identify themselves as “the representative of…(their legal name).”

If you do receive a name, it may be a “sovereign” name, compounded with “El” or “Bey” and intended to denounce their association with the name provided them by a government entity.

Be sure to document all known aliases."


This line says it all:

"the name provided them by a government entity."


Merriam-Webster
Definition of PROVIDED
: on condition that : with the understanding : if

Definition of IF
1
a : in the event that
b : allowing that
c : on the assumption that
d : on condition that

So there are assumptions and conditions associated with using the provided government issued NAME.