Sec sch cert not important. Just tell them that you will bring
it for the next interview. But i dont think they will ask you for
it for the next interview.
Till now, they didnt ask me for the cert. If they did, i just
say i misplace it and the sch cant get me a replacement.
Pes status can be found online www.ns.sg if you served NS in
army
But if you have yet to enter NS, then just let them
know.
If you served your NS in police, i think you need to call your
hq or unit whatsoever