The purpose of scanning the crime scene by the C. S.I. after it has been secured is not to...
Determine what personal protective equipment should be used
Determine what level of investigation should be conducted
Prepare preliminary documentation such as notes rough sketches or
photographs
Locate and apprehend the suspect

Explanation:

To must walk thoroughly through the scene to get an idea of how the crime was committed, and if there is any entry/exit wounds on people or objects. The purpose of the walk through is to determine what needs to be more closely examined and what evidence may be present

the numbers are even higher.

explanation:

statistics have shown that more that 60% of test takers fail the first time and have to retake the test.

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