When somebody goes missing on landit's fairly straightforward in that you would work on...

[Phil] When somebody goes missing on land
it's fairly straightforward in that you would work on information, where they were last seen,
places that they frequent, and any other information
that you get from family or relatives. Whereas at sea
it's slightly more complicated. Because you need to have a position where they were last known and then work back with tide and wind. And calculate then,
what the direction of travel they maybe if they are floating in the sea. The lifeboats and fishing vessels all were called in to help search
for Russell. The air search aircraft was also scrambled and that carried out a search as well