does WA state department of corrections DOC have authority to mandate restrictions on business activity

Legitimate WA DOC Authority?: Hello:

I am trying to be of help to a friend.

Does the WA DOC have the legitimate legal authority to mandate a DV-2 (no weapons, alcohol, drugs involved) from doing entering and doing business in a county which is some 35 miles from the town where the plaintiff spouse resides?... or is DOC acting under "color of law"?

If NOT legitimate, how can legal remedy be successfully implemented?

Thank you in advance for a prompt response. :)