Different Hall: Remind the CNA that they work for the facility and not a specific hall, If the move is related to specific incident, investigation, or complaints then state the policy, the corrective action requirements, or to protect the employee so the move is necessary.
Hiding: Tell them that management, supervisors know they cannot be found and are getting complaints about neglecting patients and work from various sources levels example patients, family members, nurses. Then bring up consequences like being moved to a different shift, hall, loss of job, and have them complete a customer service course.
Overstepping: You could remind nurse of job requirements, policy, scope of practice and maybe bring up increasing their workload or changing positions.