Anyway as a professional you have to know the law, especially when it comes to your area of expertise.
The action taken by me might border on overreaction, but I was darn pissed at the way I was treated. I'll leave it at that.
To clarify matters, this is what I questioned MINDEF about (extract from my ancient email)
1. Does MINDEF/SAF not give/release a press release when an exercise is imminent? It has done so in the past and I have never seen a military operation held in a public place without a press release although it is not required by law (Refer to Cap 295, s. 208).
2. Should a operation be held in a public place without a prior press release, what documents are the personnel involved in the operation required to produce to prove to the general public, that indeed, this is a legal military operation/exercise?
All aid to civilian authorities approved is required to be published in the Gazette (Cap 295 s. 201C) as soon as possible. Are other operations not so?
3. What jurisdiction do Singapore Armed Forces Military Policemen have on civilians, in this case me, ordering them to cease photography? They are authorised to arrest a person not subject to military law who willfully obstructs any military operation, training or function only (Cap 295 s. 166).
Are they also not required to produce their identity cards? If they did not, how would I then determine if the operation was a legal one and would the military policemen in question not be committing an offence themselves under Cap 213, s. 6 subsections A and B?
4. If this was indeed a legal operation approved at higher levels, I can only comment that it was extremely poorly done and to the tourists surrounding me, shows an unprofessional side of the SAF. If it was not a legal operation, I believe that those in charge of these military policemen can draw their own conclusions on the legal training these servicemen have, their professionalism and their attitude.