From my understanding, you cannot email the police check as an attachement because it needs to be the original thing.
I sent my application with everything including form 80,my medicals and police checks from both Kenya and Germany where I reside. Unfortunately, I havent been told anything about a case officer. I keep checking my mail every 2 minutes
PMV to 820 Application - 15 April 2014
820 Visa Granted - 18 March 2015
801 Visa Granted - 28 April 2017