any time past 24 hours is cause for concern and time to contact police
There's have to be some extenuating circumstance to go from "missing" to "missing and presumed dead". Maybe he went missing after being struck dead and knocked overboard. Maybe the water at that time of year guaranteed a quick death from hypothermia if he wasn't found right away. Maybe there was other clear evidence that precluded the possibility of survival. Interesting little mystery, and probably still solvable if there's enough motivation to uncover the answer, since it wasn't so long ago that everyone around at the time is necessarily dead.
no .. better conduct investigations before declaring someone as dead .
yes, unless you know something...
No, normally it takes seven years before a missing person can be declared legally dead.
The same, unless some-one has proof of the person's death.
why are you posting this over and over.. 7 yrs before you declared dead innit?..