Japanese Crimes and Trial System

Japan used be a very low rate crime country.
Recently it is not like used be. I have an alarm system in my house.

The crimes have been increased 50% in last seven years.
Last few years the rate of arrest also increased, it is a good news.
But the ability of the Japanese police forces reached their limit.

Right now the rate of murder cases is 90%. But there are many complecated cases and crimes by the people from other countries make them difficult to arrest.
Some cases the susupects had run away next morning they killed someone to Brazil.
There is no treatment between two countries to deliver the suspects from Brazil to Japan.
The prisons are full, because there are too many Chinese in.

For the usual crimes , such as larceny, rape and fraud, the arrest rate is 30%, I guess.

Also the crime of false investments for senior people have been increasing.

The police precinct which manages my area was built when I was a college student, but still the same and size.
This area has been developed and increased the population especially in day time.
So I have never seen cops patrol near my house with their low charged handguns.

In diet, the new trial law passed and finally Japan will have a jury system.