What is the legal consequence of tampering with, disconnecting, or manipulating a Digital Tachograph (e.g. using magnet devices or fraudulent software)?

1. Only the fixed administrative consequence for forgetting one printout
2. Serious offences and sanctions can follow under tachograph, road-traffic and criminal law; authorities may secure manipulation equipment and take action against driver or operator authorisations after the applicable procedure
3. Only the employer can be liable, never the driver who used the device
4. The driver may correct the false record later with no consequence if no collision occurred