Recent DUI Checkpoint News

There have been a lot of recent articles in the local media about the massive “Avoid the 30” anti-DUI campaign in Riverside County.  Much of the stepped-up enforcement has taken the form of DUI checkpoints.  Check out these stats published in a recent Press-Enterprise article:

At a Temecula checkpoint:  1,220 cars stopped by armed government agents, 2 drivers arrested on suspicion of DUI

At a San Jacinto checkpoint: 468 cars stopped by armed government agents, 3 drivers arrested on suspicion of DUI

At a Chino Hills checkpoint: 1396 cars stopped by armed government agents, 1 person arrested for DUI

That makes for a total of 3,084 cars stopped by police, and in none of those stops did police have probable cause to think that the drivers were doing anything wrong.  Total DUI arrests amounted to 5.  The article does not mention how many cases were filed by prosecutors as a result of those arrests.

None of the articles about Operation Avoid the 30 mention the cost of the operation, or any single DUI checkpoint.  What was the cost to the taxpayers of netting that one DUI arrest in Chino Hills?