To add to previous replies:
MATS Part 1, Section 1, Chapter 5, Page 12, No 13 Terrain Clearance states:
Controllers are to ensure that levels assigned to:
a) IFR flights in receipt of a RCS
b) flights in receipt of a RAS and
c) flights in receipt of a RIS and receiving radar vectors;
provide adequate terrain clearance for the phase of flight as shown below.
then there is a large table below which for reasons of time I won't duplicate.
Then it states;
Radar controllers have no responsibity for the terrain clearance of, and shall not assign levels to, aircraft:
a) in receipt of a RIS when not subject to radar vectors or
b) operating SVFR or VFR within CAS which accept radar vectors.
It seems pretty clear, as a controller I believe we have more responsibility for terrain clearance than previously indicated in this thread.