French police are investigating claims of tampering with weather sensors after unusual bets were placed on Polymarket, a prediction market platform. The inquiry was sparked by reports suggesting that individuals may have used devices, such as hairdryers or lighters, to manipulate weather data.

This investigation highlights concerns over the integrity of weather-related betting markets and raises questions about the lengths to which some may go to influence outcomes. Authorities are working to determine the validity of these claims and the potential impact on the betting community.