I don't think anyone has said the Police are corrupt.
We the general public know very little of what is going on there just now, apart from the limited press releases.
I said I am still 50/50 on the charges, because i know in some cases they can go for what's called a holding charge when they are running out of time to keep someone in custody without a charge, whilst they still continue with the investigation, they will not want to release anyone until they gather as much evidence as they can, with the fear of losing evidence if someone is released. The amount of people arrested appears to be growing by the day.
Or yes, they have lots of evidence to show his involvement.