When handling liquid pools of blood, what is the proper method?

Using gauze pads or sterile cotton cloths when handling liquid pools of blood is the proper method because it ensures both safety and contamination prevention. Blood can potentially carry infectious pathogens, and using appropriate materials reduces the risk of exposure to harmful microorganisms. Gauze pads or sterile cloths provide a means to absorb the liquid without direct contact, which is essential when dealing with biological fluids.

Additionally, this method allows for careful collection or preservation of the blood sample for analysis while minimizing disruption to the scene. This step is crucial in forensic investigations, where preserving evidence in its original state is important for accuracy in later analysis.

The other methods mentioned would either compromise the integrity of the evidence, pose health risks, or fail to adhere to safety protocols in a forensic context.