He told GB News: "His behaviour wasn't entirely predictable. He wanted to get a bus back to the south, and yet he was seen walking away from the village in the opposite direction after stopping a neighbour to ask for the bus timetables.
In praise of the Spanish police, Couzens said despite not issuing a public appeal like the British authorities would, they are "quietly working away" and are "focused on the work they're doing".
Couzens added: "It's a very emotionally charged situation, but I think the Spanish police are handling it well, albeit in a very different manner to the way the British police would.
"They're quietly working away in the background and focused, as they told me this morning when I just spoke to them, totally, 100 per cent focused on the work they're doing
The 19-year-old disappeared in Tenerife last Monday after attending the NRG music festival on the island
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