Answer:
- He did not photograph the scene.
- He didn't wear gloves.
- He contaminate the evidence.
- He didn't write down the bullet number.
Step-by-step explanation:
The first step before moving something from the scene would be to photograph it, since that way we can always see the position of the weapon and any other detail we need.
Immediately continue to wear gloves to touch any type of test and not contaminate it with our fingerprints.
Then we should review any type of evidence that may have been removed, like some hair by the wind or some dry spot that is dark.
Also is necessary to compare the bullet number with the weapon to see if they correspond and put dust for fingerprint detection on all the evidence and remove it with tape.
To finish the evidence they go in a bag and on this the label to not contaminate in any way, and to be able to carry out the studies that have to be carried out later.