Reasons to co-operate if fully innocent:
To clear yourself and to avoid being a suspect which is not great.
Public perception
Avoid NFL punishment, because you better damn believe not coperating is punishable.
There's three reasons. And thinking co-operating with police is laughable, is a take a fraction of criminal defence attorneys will have. Its obviously much more nuanced than that. I'm sure some of my friends who are criminal defence attorneys would agree with Husko. But, it is pretty unreasonable imo