Those air tanks firefighters wear are compressed air, not oxygen. Oxygen is highly flammable - the last thing you want to take into a fire. But the air tanks are highly pressurize which makes them very dangerous. One instructor made the comparison of blowing up a balloon and letting it go.
|Air tanks ready to go.|
The concrete walls and/or floor in many prison provide a way for prisoners to fashion weapons by shaving or shaping items against the rough surface. (And yet, many cells are still constructed this way.)
|Sgt. Catherine Netter talking about jail cells.|
Blood evidence usually falls into one or more of the following:
- Passive - drops, clots, pooling;
- Projected - arterial spurts, cast off splashes;
- Transfer - smears, wipes, tracks;
- Misc - voids, fly spots. What's a fly spot? It occurs when a fly lands in the blood, then lands somewhere else at the scene. Lots of flies can confuse the scene.
|Types of blood splatter.|
In gunshot wounds inflicted at close range, it is common to have blood splatter inside the gun barrel.
The K9 officer, Joy, pictured below is trained in Dutch. This is her native tongue; plus, it makes it difficult for suspects to try to counter her handler's commands.
|Joy is the one looking up.|
|Dr. Denene Lofland conducts our session on bioterrorism.|
Pepper spray can cause death in certain situations. Cocaine use causes an elevated heart rate. Pepper spray also elevates the heart rate. Using pepper spray to subdue a violent suspect who has previously used cocaine could bring on a fatal heart attack.
And last but not least - no matter what you see on TV, female detectives and/or crime scene investigators do NOT come to work wearing four inch heels, short skirts, or low cut blouses (no cleavage!). Forget the long flowing tresses, too. Hair is worn short or pinned up. Think slacks with belt loops (need the belt for holster, cuff pouch, etc.), shirts, usually some sort of jacket to cover the weapon, and flat shoes or boots - not slip ons because "you'll run right out of them if you have to chase someone".
That's it for today. Did you learn anything new?
Come by on Wednesday to learn the winner of last week's Caption Contest.
Groaner of the Day: Police found a criminal shot to death with exit wounds but no entry wounds. It was determined to be an inside job.