Who has the authority to order for a sample to be retested?

The authority to order a sample to be retested lies with the Commander. This reflects the chain of command and responsibility within military operations. The Commander holds ultimate accountability for the unit's readiness and the integrity of the testing process, which includes ensuring that the results of drug tests are valid and accurate.

In cases where there may be concerns over a sample's integrity or if there are discrepancies in the results, the Commander can assess the need for a retest. This action is part of maintaining the fairness and accuracy of the drug testing process, protecting the rights of soldiers, and upholding the standards of the military.

The other roles, such as the UPL, do play significant parts in the testing process, but they do not have the authority to initiate a retest independently. The UPL's functions primarily involve overseeing testing procedures and ensuring compliance with policies. Thus, while all personnel have important roles in the process, the final authority to order a retest remains with the Commander to maintain proper command structure and accountability.