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-   -   Probation and drug tests (https://www.askmehelpdesk.com/showthread.php?t=626981)

  • Jan 11, 2012, 07:08 PM
    jsims179
    Probation and drug tests
    What is the cut off levels for probation officers drug tests is it the normal loke everyone 50 ng/ml for marijuana
  • Jan 11, 2012, 07:23 PM
    DrBill100
    It is probably more related to laboratory practice. Standard cutoff is 50 ng (forensic) although some labs offer 25 ng. Usually, the cutoff is 50 (IA) screen and 15 at confirmation (GC/MS>)*. These figures relate to urine testing.

    *confirmation testing is performed only after a positive IA.

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