"While driving" could mean you've stopped the car, but you haven't put it in park, applied the handbreak, and switched off the engine. The police are a bit vagu

"While driving" could mean you've stopped the car, but you haven't put it in park, applied the handbreak, and switched off the engine. The police are a bit vague at what constitutes "driving" because they want to fine people who check Facebook at traffic lights. An officer can ask for your license if they flag you over and you haven't totally stopped the car (thus you are legally "driving"), as long as you're being safe they just want to check for drunk drivers as quickly as possible. "License, how many drinks have you had tonight, count to 5, have a good night". Unlike America they don't need suspicion, they just flag over everyone they can on a Friday night. On the other hand an officer can fine you if you start playing on Facebook while the car is stopped but you're still legally "driving".