Fluids (of all types) are collected and sealed in air-tight vials or small bottles/jars.
by using a spatula.
finger prints
A crime scene investigation involves securing and documenting the scene, collecting physical evidence such as fingerprints or DNA samples, photographing and sketching the scene, and interviewing witnesses. Forensic analysis of the evidence collected is also a key component in determining what happened at the crime scene.
Because in every crime something is either taken and/or left behind by the culprit, therefore connecting them to the scene.
It is called "processing"
A rough crime scene sketch is typically done before evidence is collected. This preliminary sketch helps document the layout of the scene, including the location of items like weapons, bodies, and other important details for investigative purposes. It is not meant to be precise, but rather to provide a general overview of the scene.
its evidence. it doesn't mean everything but what is collected during a criminal investigation that helps prove the suspect/prosecutor committed the crime. Much of it is collected at the crime scene, if there is one.
ALL that is known, or foreseeably useable, in the prosecution of the offender.
mitochondrial sample
I believe it is. It will show DNA to help find evidence and suspects to close the case! Source: CSI
primary crime scene
"Crime scene" refers to the physical location where a crime took place, including evidence and potential clues. "Scene of a crime" is a broader term that can refer to not just the physical location, but also the surrounding circumstances and events related to the crime.