Just to make you think outside your current situation, you are a Customs officer

Just to make you think outside your current situation, you are a Customs officer stationed at a land border crossing in a South East Asian country.
Please answer the following questions.
*Question 1
Do you think that every vehicle coming through your border crossing has the same degree of risk for smuggling?
*Question 2
Based on the limited information below, do you consider each of the vehicles to be an equal risk for smuggling? Choose one
A truck that crosses the border daily
A truck carrying vegetables
A tanker truck carrying petrol
A truck carrying bulk used clothing of low value
A car carrying a family
A motorcycle
*Question 3
You have now been given additional information on each vehicle as follows:
The truck had been examined 8 previous times with negative results
Truck driver previously found in possession of contraband
Tanker truck is owned by a large petrol company
Truck carrying used clothing came from a area known for production of counterfeit clothing or goods
The father of the family in the car is a well-known, respected local businessman
The operator of the motorcycle is not carrying any baggage
Based upon this additional material, are these vehicles of equal risk?
*Question 4
Which transport conveyance/ cargo/persons are you going to look at?
*Question 5
Have you changed your initial assessment from above and why?