SEATTLE -

Seattle Police say a failure in the storage system that holds its digital in-car video has wiped out two days' worth of recordings.
   
The department says the affected recordings date to July 13 and 14. The majority were of in-car video tests that officers conduct at the start of their shifts or of low-level disturbance calls.
   
But about one-quarter of the recordings -- 537 of them -- had evidentiary value. Those include 89 arrests, 138 traffic citations, 95 oral warnings, 60 crisis contacts and five low-level uses of force.
   
The department says it will start using additional technical and procedural controls to make sure it doesn't happen again, and that it's proceeding with all investigations stemming from police work on July 13 and 14.