Explanation:
comparison microscopes are used to identify a specific weapon.
every gun weapon, has a unique pattern on the bullet after firing.
authorities can compare a murder weapon with the same stock of gun.
if murder weapon is found, they can compare the "murder bullet" with existing guns of the same make, model, if while finding the murder weapon, the same pattern exists on suspected weapon's bullet, it will be subjected as evidence.
Answer:
Calvin
Explanation:
The comparison microscope which came out during the 1920's is credited to ballistic pioneer CALVIN Goddard. This device consists of two microscopes connected to an optical bridge. With the aid of his microscope, he was able to compare and analyze bullets found at the crime scene to those of Sacco's revolver.
