Seatbelts at back seats

Question

The law requires all passengers in a car to wear a seat belt (although I have never met anyone getting a fine sitting at the back without a belt on) My question: I own a 1980 model car which I keep as original as possible. The car is not factory fitted with seat belts at the rear. What does the law say about my children travelling in the back of a car like this? Common sense safety aside.

Answer

The law states that if there is no safety belt fitted to the rear seats then the wearing of seat belt is not required however if the front seat is unoccupied then the child must be seated in the front where there is a safety belt.