Who stole all the urine samples from the Logan office of the Bear River Health Department earlier this month? The world may never know.

Leads have dried up, says Logan Police Lt. Rod Peterson, and the investigation appears headed for the departmental cold case files.

"We have our suspicions, but that's not enough to go with," Peterson said Wednesday.

Sometime on Dec. 6, someone broke a window on the north side of the agency's building at 655 E. 1300 North, entered, broke the lock on a storage room and made off with all 17 of the 4-ounce, lidded cups containing the refrigerated samples used for corporate as well as court-ordered drug tests.

The thief or thieves seemed obsessed with the urine cache, ignoring expensive computer equipment and office supplies in the same room.

Police had hoped a security camera's video might help identify the culprit, but Peterson said it turned out the device was located in an area without a good view of the crime scene.

The 17 original contributors were asked to re-submit fresh urine. All but one did so voluntarily; the final holdout, a male, has refused. Peterson said that raised investigators' suspicions, but by itself was insufficient to either compel a new sample, or file any charges.

Following the break-in, Bear River Health spokeswoman Jill Parker said the agency had no record of there having ever before been a wholesale theft of urine from its offices.

While the case remains unsolved, the incident has sparked an internal discussion about how to improve the health office's security, Parker said.