It was initially believed Liam got off the bus in Banchory, as he had bought a ticket to Raemoir Road. This is what the BBC reported on 20 November:
A 16-year-old boy who has been missing from Aberdeen since Saturday is now believed to have got off a bus in Banchory.
Liam Smith caught the 202 Stagecoach bus from Aberdeen on Saturday at 13:11. It was initially thought he had got off the bus in Lumphanan, where searches have been carried out, but police are now satisfied that person was not him. Liam's mother Alix Smith has spoken of the family's desperation for him to be found safe.
Ch Insp Martin Mackay said: "We are continuing to urge anyone with information to come forward and we now would particularly ask people in the Banchory area to think back to Saturday and consider if they have seen Liam then or at any time since. "We know that Liam bought a ticket for Raemoir Road, Banchory and would ask anyone who may have been in that area around 2.00pm to think back to that time as they may be able to assist us in establishing his current whereabouts."
However, a passenger on the bus said the had seen Liam get off in Crathes and this is where they have been looking for Liam ever since. The police have said the passenger was a credible witness but i wonder now if they might have been mistaken? Would be awful if they've been looking in the wrong area all along.