Additionally, the testing laboratory should receive no correspondence concerning which specimens the company suspects might be positive. DOT rules . Blind testing is used at two levels. In addition, the standards are to be labeled in ways that make them appear as ordinary samples. In science, the penalty for being caught falsifying evidence is complete and total ostracization from the scientific community.
Drug tests are different because there are no repeated cycles of evaluation and revision.
That is, if your blood or urine tests positive by a fraudulent procedure, the authorities will not come to you later and take another sample to confirm the result. It is thus imperative that procedures be implemented to guard against falsification of test results. Of course, the use of replicates, standards, and blind procedures help in this respect. In general, the DOT rules are far more specific about matters of personal liberties and rights than is the typical procedure in science, largely because most matters of pure science do not impinge on people's rights and freedoms, and they can be verified at a later date. All rights reserved.