What steps must be taken for the urine sample once collected?

The correct response indicates that the urine sample must be stored in the evidence refrigerator, reflecting the importance of maintaining the integrity and viability of the sample for analysis. Urine samples can be subject to contamination or degradation if not handled properly. Refrigeration helps to preserve the chemical composition of the sample, reducing the likelihood of changes that could compromise testing results.

In a law enforcement context, properly managing evidence is crucial for legal procedures and maintaining the chain of custody. While options mentioning discarding the sample or sending it directly to the courthouse may seem practical, they do not account for the necessity of preserving the sample's integrity for future analysis and testing. Leaving the sample at the police station without proper storage can also jeopardize its condition and reliability. Hence, the requirement to refrigerate the sample is a key procedural step in ensuring that it remains viable for judicial processes.