Roshni, a forensic scientist, has ruled out several different drugs when testing a substance found in a car. She suspects that the substance is cocaine. What should Roshni do next?
A.
Perform a confirmatory test.
B.
Put the substance in a bag, label it, and send it to a DEA office.
C.
Confer with a colleague about her suspicions.
D.
Collect a blood sample and see if it also contains the same substance.
A. Perform a confirmatory test.
Hiroshi is a forensic scientist testing a drug he believes to be heroin. However, it is difficult to identify because the heroin is mixed with another additive. What other substance will Hiroshi MOST likely find?
A.
quinine
B.
sodium chloride
C.
potassium
D.
opium
A. Quinine is a common additive found in heroin to stretch the amount of the drug and increase profits for the dealer.
To determine what Roshni, the forensic scientist, should do next when suspecting that the substance found in the car is cocaine, let's analyze the options:
A. Perform a confirmatory test: This is an appropriate next step. Roshni should follow this option to confirm her suspicions. A confirmatory test is a more specific and conclusive test that can definitively identify the presence of cocaine in the substance.
B. Put the substance in a bag, label it, and send it to a DEA office: Sending the substance to the Drug Enforcement Administration (DEA) office might be necessary eventually, but it is important to first establish a confirmed identification through a confirmatory test.
C. Confer with a colleague about her suspicions: Seeking input and discussing the case with a colleague can be beneficial in obtaining different perspectives. However, it should not be the immediate next step when there is a need to establish a conclusive identification of the substance.
D. Collect a blood sample and see if it also contains the same substance: While collecting a blood sample might be relevant in certain cases, in this context, as the substance was found in a car and Roshni is suspecting it to be cocaine, it is more appropriate to focus on directly testing the substance itself.
Therefore, the best course of action for Roshni would be to choose option A: Perform a confirmatory test. By conducting this test, Roshni will be able to conclusively determine whether the substance is indeed cocaine or not.