When a person tests **positive in breathalyzer tests**, it is considered a very serious offense. This implies several consequences, such as paying a fine, losing points on the driving license, and even the possibility of losing the driving license temporarily or going to jail if the lives of other people have been endangered.

One of the measures that the traffic officer can take is to **immobilize the vehicle** to prevent the person from continuing to drive under the influence of alcohol. However, there is an exception to this rule: if there is **another duly qualified person** who can take over the driving of the vehicle, the officer may allow this person to drive instead of immobilizing the car.

Therefore, the correct option is for another qualified person to take over the driving, as this allows the vehicle to continue its journey without needing to be immobilized.