Answer: Because the suspect may have a reason for his or her fiber being there.
Explanation: if they are a roommate, friend, or someone who had access to the crime scene, the evidence of a matching fiber could easily be explained away. It is best to question a suspect about if they had been to that location before. If they say no, they are locked into that answer, thus there is no innocent excuse for the fiber being present.
Law enforcement officers aka the police has the sole purpose to protect and serve a community of people in their jurisdiction. A SWAT team specializes in high-risk situations i.e hostage situations, bomb threats, high profile warrant subjects. They are appropriately decked out in armored vehicles tactical combative gear and are equipped with powerful rifles to execute contracts that regular police officers aren’t equipped for.
