The answer would be Due Process
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.
1) a situation in which human wants are greater than the capacity of available resources to provide for those wants
2)a situation in which a resource has more than one valuable use