Petra finds a discolored stain on the carpet at a suspected crime scene. What two presumptive tests might she use to determine if the stain is blood?
First, Petra sprays the discolored area with
, which returns a glowing blue color. However, she knows that this chemical might also turn blue with other substances that contain iron. Subsequently, she uses
, which turns pink, indicating the presence of hemoglobin.
Answers: 1
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Per this theory, juvenile offenders learn to commit crimes through exposure to others. strain theory differential association theory neutralization theory social control theory none of the responses are correct. all of the responses are correct.
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My town doesn't allow solar panels, but i know they are a great source of renewable energy and can save you money. how can i make my town allow solar panels?
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Petra finds a discolored stain on the carpet at a suspected crime scene. What two presumptive tests...
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