A new crime laboratory is now open in St. Louis County, several weeks later than anticipated and costing about $2 million more than projected. Police say the lab will help cut backlogs.

The lab has been at the center of problems. The delay came after a contractor temporarily lost a heating and cooling license after his business partner quit.  That halted work for several weeks.

The contractor was also a county police board chairman, and there was concern about whether his firm should have received the contract in the first place.    It was paid $3.7 million for the work.