Security measures when police investigations are flawed

Under the new Criminal Procedure Act,
it is now possible to inspect and copy investigation records.
Under the previous system, the entire set of investigation data
was not provided.
In most cases, if a detective simply closed the investigation,
the victim had no choice even if they felt wronged.
Now, you can inspect and copy investigation records,
and if you are unsatisfied with the investigation, we even provide
an application form so you can request a reinvestigation
from a higher authority.
Furthermore, the law has been created so that
you can receive assistance from a public defender.
Now, those corrupt cops won't be able to get away with not investigating, right??