'enforcement backup'  

Which means we Springfield and all Lane County taxpayers still get to cover the basic patrol costs for the LCSO.  Two deputies and a Sergeant to the knifing for a few hours adds up fairly quickly.   

And when there are trials, Eugene isn't paying for their overtime, I will be.  

That isn't covered by your 'fraction of $89,000'.  It has to come from somewhere else.  Where exactly is that pot of gold that you've found?