What you say doesn't in and of itself, have any effect on this. If what you say is true then it's always the case that crime is underreported, always the case t

What you say doesn't in and of itself, have any effect on this. If what you say is true then it's always the case that crime is underreported, always the case that crime is deleted from reported crime numbers, always the case that crimes get downgraded... So given that this is a consistent property of reported crime, you still need to explain why the number of reported crimes is lower now than before.