How Does Luminol Help Solve Crimes?
October 31, 2009 |12:30 | News By : Team X
Cop shows and movies show you an unbelievable range of gizmos that can perform unimaginable tasks – such as bringing into focus a single voice from an otherwise muffled recording or computers that can zoom in on a tiny section of the image on the screen. Most of it is pure fiction. But one seemingly strange chemical that glows when it comes into contact with blood is for real. It’s called Luminol.
Luminol is a chemical that glows with a bluish light when it comes in contact with blood. It even reacts with years old traces of blood. An ultra-sensitive chemical, it can detect blood at one part per million. In simple language, this means that if there is even one drop of blood in 999,999 drops of water, luminol will glow. Hence, extensively used for criminal investigations, luminol has helped crack some pretty tricky cases of detection.
Victims of bloody, violent crimes cannot disappear without a trace – that is the basic assumption on which crime scene investigators function. No matter how hard the murderer tries to clean up the blood and dispose of the body, some tell-tale traces of blood will remain. Tiny blood particles can cling to most surfaces for years on end, without ever being seen.

can now report crimes to police from the comfort of their homes, through their computer. Police have launched an online crime reporting function via a Thames Valley Police website for minor incidents and non-emergencies. By the end of January police hope victims will also be able to report some crimes via a text message from their mobile phone or by email. 











