A Venezuelan and three Colombians are in preventive custody in Lisbon after being ‘caught’ allegedly trying to smuggle ‘invisible cocaine’ into the country within packets of gourmet coffee.

How police were able to detect invisible cocaine is not fully explained, but tabloid Correio da Manhã credits Judicial Police with what it calls “shrewdness”.

“After wine, shower gel, cans of pineapple and even frozen octopus, Colombian trafficking networks are now using a new method to introduce cocaine into Europe”, the paper explains.