The evidence inventory lists a fibre sample that does not appear in any lab report. Where did it go?

Unsolved homicide from 2001 in Denver County, CO. The file remains open and contributors are re-examining the physical evidence inventory.
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Body discovered near Wrenfield; the county opens a homicide investigation.
Initial canvass closes without a named suspect; the case goes inactive.
Records are digitised and released under a public records request.
Ledger contributors reopen the evidence inventory and index the public record.
The evidence inventory lists a fibre sample that does not appear in any lab report. Where did it go?
County weather records contradict the stated ground conditions in the scene report. That changes the tyre impression reading.
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