As I interprate the rules in France, collars can be used, but not in the pursuit of hunting, only in the job of finding a lost terrier. ie: you cant search for a dog to be able to dig it for hunting. But when you have lost your dog, you can switch on the finder to retrieve your dog. IMO this keeps the fieldcraft alive of listening.finding a dog at work without being lazy and switching on an electronic device. Apparently it was the french who voted against the use of electronic collars for HUNTING. But ok for RESCUING.
Also the country has a strong sense of solidarity. Just look at wha