Question

which of the following best defines locards exchange principle? evidence that directly proves a fact without inference. a crime scene must be secured to preserve evidence. evidence must be packaged and sealed properly to maintain its integrity. when two objects come into contact, a cross - transfer of materials occurs.

Explanation:

Locard's Exchange Principle states that when two objects come into contact, there is a cross - transfer of materials. For example, a criminal at a crime scene will leave some trace of themselves (like fibers, hair) and take away some trace of the scene.

Answer:

When two objects come into contact, a cross - transfer of materials occurs.