Which fluid is allowed to be used for drug testing under CASA protocols?

The use of oral fluid for drug testing under CASA protocols is significant because it provides a non-invasive and convenient method for sample collection while still being effective in detecting various substances. Oral fluid testing can identify recent drug use, as it captures substances from the saliva that reflect the individual’s active drug consumption. This method strikes a balance between practicality and reliability, as it is less intrusive compared to blood tests and can be administered in a variety of settings.

In this context, the other methods, while potentially effective in certain circumstances, may not align with CASA's protocols in the same way. For example, urine tests, while commonly used in many industries, can be susceptible to tampering and may not represent an individual's current impairment as accurately as oral fluid. Blood testing, although highly accurate, involves a more invasive collection process and is generally used in more specific situations. Saliva testing, while potentially applicable, may not be as robust as oral fluid testing according to CASA's established standards.