Yeah, they wear civilian. At most, their version of the No.3
uni.
Encountered them twice in NS, both after training accidents. The
first time was more of a second-hand anecdote, from a selected few
who were singled out to give them eyewitness accounts. (My RSM took
over the rest of us shocked troops & basically drilled us
non-stop on the parade square, in preparation for a military
funeral.)
The second time was during the next mono-intake, when a wayward
grenade throw from a recruit resulted in my fellow
instructor-cum-BMT photographer taking sharpnel in the gut. Two
civilian cars came down, all but one of its occupants were in plain
clothes. One of them had a quick word with me, but left upon
establishing that me & my recruits were in a sheltered training
shed far away at the time of the accident. The IOs were fairly
young, as I recall. Could've been regulars, but none as old as my
then-Encik (who was 26 or so).
The SIB seems to be a small sub-unit, I believe. A bit like a
unit's S1 cell, but proportionally large enough to investigate for
the whole SAF. Their OC seems to be of a CPT's rank, tops.
