They don't look like police to me - more like ICA.Shoot around the ship is free. Two policemen station at the entrance of the ship checking sailor's passport when stepping into Singapore land. In this case, same logic apply if you allow to get on the ship passport is required?
i juz came back from vivo...the ship is so freaking huge...tried taking pics of it in the dark but didnt come out rite...the pics came out mostly blur...but i caught one or two average photos of the ships name
FYI.. STS Pallada will be leaving Vivo on Sunday 6/7/08.. evening time..