Processing the crime scene includes the emergency medical team's arrival the locking of all the doors around the house the law enforcement officer taking command of the scene and setting boundaries so that uninvolved persons cannot come on the scene, thus keeping both people and evidence safe the proper packaging and storing of all evidence

The correct answer is:  the law enforcement officer taking command of the scene and setting boundaries so that uninvolved persons cannot come on the scene, thus keeping both people and evidence safe.

There are a few steps that should be followed when it comes to investigation of the crime scene, So, basic crime scene protocol includes:

1.Establishing the scene dimensions-establish an area that contains all relevant physical evidence.

2.establishing the scene security- controlling the person who enters or exits the scene,

3.Making a plan, communication and coordination- developing a theory

4.Conduct a primary survey- identification of potentially valuable evidence,

5.Process the scene-collecting the evidence

6.Record and preserve evidence-to make sure all evidence is accounted.

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there are so many examples for that in different areas, like biology experiment carried out in our lab recently.

here's one link: