Yes, I agree that investing in crime prevention is very important. Nevertheless, it is important to remember everything that happens after a crime has been committed; there are people in jail.
If you were to visit prisons today and took the time to correctly assess the situation, you would see that there is not enough focus on reintegration into society. I believe in reintegration; I believe there is a way to help some individuals—perhaps not all—become contributing members of society once again. But to do that, you need to adopt the right measures and focus the right efforts on the right things, and that is not the case right now.
It is all well and good to invest in policing, but if you think increasing repression is the way to cut crime, you are missing the point: it is merely a drop in the bucket. You need to invest wisely. And I think the government has the resources to clearly identify the right approaches and the right tools to cut crime.