How do you make fake blood for blood spatter analysis?

Preparation

  1. Prepare the fake blood.
  2. Thoroughly mix two tbsp.
  3. Add four tbsp.
  4. Mix in one teaspoon of red (or other color) food coloring.
  5. You should now have a small bowl of fake blood (or other liquid, if you prefer less gore!).
  6. Be careful not to spill the fake blood on furniture or carpeting—it can stain!

How do you simulate blood spatter?

Hit the sponge sharply with the hammer. This should result in a spatter pattern on the paper. Remove the sponge and let the pattern completely dry. If you look closely at the simulated blood drops, you will see that they form ellipses.

What are the 4 pieces of evidence that can be determined from blood spatter analysis?

Analysis of a spatter pattern can aid in determining the: • direction blood traveled. angle of impact. point of origin of the blood. velocity of the blood.

What are the 3 chemicals used to find and analyze blood spatter?

Electrolytes like sodium, potassium, chloride, and calcium can also be measured in a blood chemistry analysis, along with levels of proteins and lipids. Analyzing what is in a blood sample is useful in determining the cause of death at a crime scene.

How do you make fake blood with flour without corn syrup?

To make fake blood without corn syrup, first add 2 cups (240 g) of powdered sugar and 1 cup (240 mL) of water to a large bowl. Stir until the powdered sugar is fully dissolved, then add 2 tablespoons (30 mL) of red food coloring and 1 tablespoon (15 mL) of green food coloring.

What did Dr Eduard Piotrowski do?

The Pioneer of the scientific use of blood stains was Dr. Eduard Piotrowski from the Institute for Forensic Medicine in Krakow Poland. Piotrowski conducted extensive studies on the distribution of bloodstains relating to head injuries and his work was published in Vienna in 1895.

What type of light is often used to find blood at a crime scene?

There are several common ways to detect blood at the crime scene. One very easy and quick way to detect blood is to use UV light. Reduce the risk of collecting unnecessary stains By using ultraviolet light it is possible to do an effective and quick check for possible bloodstains.

What are the 6 types of blood spatter patterns?

There are seven bloodstain categories: (1) passive bloodstain; (2) projected bloodstains; (3) impact spatter; (4) cast-off bloodstains; (5) arterial gush or spurt bloodstains; (6) wipe bloodstain patterns; and (7) transfer bloodstains.

What are the 3 types of blood stains?

Bloodstains are classified into three basic types: passive stains, transfer stains and projected or impact stains.

How do you make luminol spray?

Preparation

  1. To prepare stock solution A, fill a beaker with 100 mL of water. Add 0.18 g of luminol and 3.0 mL of sodium hydroxide solution (1 M).
  2. To prepare stock solution B, fill another beaker with 100 mL of water. Add 1 mL of hydrogen peroxide (3%) and 0.03 g of potassium ferricyanide.

How do you identify blood stains?

Luminol is often combined with hydrogen peroxide to react with the heme groups in blood, producing a bright blue glow, known as chemiluminescence. This glow allows crime scene technicians to detect blood that has dried on surfaces or to detect blood that someone tried to clean from a surface.