Thanks a lot for your input on this issue. I have read the Penal
Code and section 140 states "Whoever, not being a serviceman in the
Singapore Armed Forces or any visiting forces lawfully present in
Singapore, wears any garb, or carries any token resembling any garb
or token used by such a serviceman, with the intention that it may
be believed that he is such a serviceman shall be punished with
imprisonment for a term which may extend to 3 months, or with fine
which may extend to $500, or with both."
That section got me pretty cautious about wearing SAF and SPF
t-shirts. I own a couple of SAF shirts myself and wear them on a
regular basis. Since a lot of these t-shirts are sold/given by the
SAF to the public, I would believe it is ok to wear them. As for
SPF, there is always this issue of impersonating and posing as a
Police Officer. In any case, thanks for clearing this up, I guess
it is ok to wear the t-shirts after all, but we'll have to be
humble wearing them.