(A) If you discover a shoe print in dry sand, you should place your form around the impression. Then mix your dental stone with water until it has a batter consistency. Then you sprinkle talcum powder over the impression to make it firm. Then you pour your mixture over a spoon or stirring stick to control the direction of flow of the mixture. Then let it sit for 30 minutes or so and then begin to take the cast out by placing a knife about an inch off the cast and stick it deep enough to get under the cast and carefully pry it up.
(B) If a tool mark is discovered on a windowsill, investigators should take every precaution the can to preserve it. According to Safestein (2016), "the crime scene investigator must never attempt to fit the suspect's
(B) If a tool mark is discovered on a windowsill, investigators should take every precaution the can to preserve it. According to Safestein (2016), "the crime scene investigator must never attempt to fit the suspect's