A Tri Cities Police Department Is Now Offering A Smart Phone Application. The Johnson City Police Department’s On-Line Crime Mapping Site Has An App That Available For Mobile Devices. Crimereports.Com Is The Near Real-Time Source For Official Crime Data. Citizens Can View Date On The Crime Map Such As National Sex Offender Data Alongside Crime In One’s Neighborhood. The Service Is Free To Everyone, And A Password Is Not Required To Be A User.