No. The car can never be used for anything illegal. Suspected illegal use is reported to the police, the hire is ended, the car is recovered, and the insurance won't cover any loss.
This includes
- Carrying drugs, stolen goods or other illegal items
- Using the car in any crime
- Fraud, including false booking details
- Drink or drug driving
More
See can I transport hazardous or restricted goods and can the vehicle be recovered if misused.