In scenes reminiscent of a glitzy Hollywood blockbuster, the suspects - a 37-year-old Lithuanian and a 63-year-old Ukrainian - allegedly used two minuscule cameras to capture the moment the dealer pulled the cards from the card shoe. This complex scheme meant they were able to turn over France's Enghien-les-Bains casino for a whopping €200,000 in a single night - and investigators believe they had performed similar feats in several establishments across the continent.

Neither of the detainees had criminal records, but searches of their persons and their hotel rooms uncovered fake IDs and multiple casino cards, suggesting to investigators they had likely refined their technique at several other casinos prior to being caught. They're clearly specialised in this type of crime,' he said, adding that the miniature earpieces used by the pair to receive instructions could only be removed with a magnet, underscoring the sophistication of their operation.

'They're not hoodlums mixed up in drugs or pimping. The daring duo, arrested late last month in France's Val-d'Oise region just north of Paris, are said to be part of a criminal gang that has amassed huge winnings in casinos across Europe thanks to their imperceptible and highly technical approach.