Retrieving TAGS associated with cases?

Retrieving TAGS associated with cases?

We are successfully pulling various properties, but have been unable to pull TAGS with the selectfields parameter.  Is retrieving TAGS possible?  If so, what is the field name we should include in the request?

/json/requests/getrecords?authtoken=mytoken1234&portal=SAMPLEPORT&department=SAMPLEDEPT&selectfields=(CASEID,Ticket+Id,Category,Subject,Status,Resolution,Created+Time,Modified+Time,Account+Name)