In total, three cars have been rebuilt and several rebuilds are underway, according to the Police Authority. As long as the dogs are also allowed to sit leashed in the back seat.
The police began investigating the cars after nearly half of the police dog handlers alerted that the dogs felt unwell in the noisy cages in the dog handler cars, which started being used five years ago.
Göran Bolinder, acting head of the police's national vehicle unit, tells the radio that the response so far has been positive.
It becomes a quieter environment for the dog, there are fewer vibrations and it can get another contact with the driver as well, which may make the dog become a little calmer too.
The police will now conduct a procurement for a new type of car that is expected to begin being used from next year, according to Bolinder.
