I am not able to find any evidence of a topic for the SRU, either on here or the ARPD forums.
As ruled by Judge Jaaskaa, the "SRU" is not copyrighted in any way, even if the group was called that (which it isn't, it is the SARU).
It is not allowed for SACS to withhold "response unit" as part of a group name, when it is merely a division.
Valid group.