[manigandham]

"Solving" a case in real world policing is much more complicated than you seem to think. Many crimes are not reported, solved off-record, or just prevented in the first place. Many are reported with no info to do anything with, and others take magnitudes more resources to solve then is practical.

I suggest you go for a police ride-along or listen to dispatch to learn what it's really like. And police are still at the mercy of the laws and courts which can make their efforts ineffective. You can catch all the criminals you want but it won't do anything if they're let out immediately with no consequences.