Answer:
a substrate control is an uncontaminated sample
Explanation:
it allows forensic scientiststo compare the two samples to better observe whether a flammable liquid is present
Answer:
dont
Explanation:
You dont want to do that for something very important
Answer:
Justice
Explanation:
Body camera footage provides critical evidence for internal and external investigations of police conduct and offers community members a detailed, firsthand account of what happened during an encounter.
