#forensicfact

[forensicfield]

Fluorescence Examination:: As early as 1933, fluorescence examination with UV light was suggested as a method of visualizing latent prints dusted with anthracene powder on multicolored surfaces (Inbau, 1934, p 4). Before the late 1970s, UV fluorescent powder was used occasionally and appears to have been the only credible fluorescent method of latent print detection. In 1976, researchers at the Xerox Research Centre of Canada discovered inherent latent print fluorescence via continuous wave argon ion laser illumination. Shortly thereafter, the first latent print in a criminal case was identified, using inherent luminescence via laser excitation (fingerprint on black electrical tape) (Menzel and Duff, 1979, p 96). Since the late 1970s, advancements in the technology of fluorescence detection have greatly aided the hunt for many types of forensic evidence. Today, evidence that would be barely perceptible or even invisible under normal lighting is routinely intensified by fluorescence. Bloodstains, semen, bruises, bone fragments, questioned documents, flammable residues, fibers, and fingerprints all merit examination with a forensic light source or laser.

To visualize latent prints via fluorescence, a specific bandwidth of radiation must be shone on either an untreated latent print or one treated with a fluorescent chemical. The wavelengths chosen will be determined by the chemical involved and the luminescent nature of the substrate. The evidence is then examined through viewing goggles or filter plates that block the incident light from the forensic light source. These goggles act as a barrier filter and are fundamental in separating the incident light generated by the light source and the weak fluorescing signal emitted by the latent print. This separation of incident and emitted light signals gives fluorescence examination its sensitivity.

[forensicfield]

Practice Set 2. . .**************** Enhance your knowledge with @forensicfield. . Study with us.... . Like it, follow us, Comment your Answers. __________________________ ________________________ #forensicfield #forensicscience #forensicscientist #forensicpsychology #forensicmcq #forensicquestionandanswer #forensicquestion #forensicknowledge #forensicfact #forensicnews #criminology #crimescene #crime #criminalistic #forensiccriminology #mcqs #forensicquiz #forensicmcq #learning #forensiclearner #forensicnotes https://www.instagram.com/p/CAxWpsDj6uG/?igshid=1hedfq52srw4z

[forensicfield]

Chemical Components Of Insect Venoms ______________________ Enhance your knowledge with @forensicfield. . Study with us.... . Like it, follow us, Comment your Answers. __________________________ ________________________ #forensicfield #forensicscience #forensicscientist #forensicpsychology #forensicmcq #forensicquestionandanswer #forensicquestion #forensicknowledge #forensicfact #forensicnews #criminology #crimescene #crime #criminalistic #forensiccriminology #mcqs #forensicquiz #forensicmcq #learning #forensiclearner #forensicnotes https://www.instagram.com/p/CArwEg9jaYU/?igshid=iw8swomi5ikt

[forensicfield]

Hello, I know you are studying well with the help of your teachers, books and google. . Have you Preapared your notes which will help to revise your topic better? Always preapare a pointwise notes according to your style of study. . We have covered some topic for you which will not only help you in your notes, but also will help you to get marks in examination after reading these point wise notes. . I have got many requests to preapare mcqs on different topic, Which i am continuously uploading, but other videos are also Preapare accordingly so you can remember these point whenever you see related mcqs. . Please let me know in the comments that how much useful you find these? . https://www.youtube.com/channel/UCbYA9O39QzWNHdd3kwB0lLw ________________________ #forensicfield #forensicscience #forensicscientist #forensicpsychology #forensicmcq #forensicquestionandanswer #forensicquestion #forensicknowledge #forensicfact #forensicnews #criminology #crimescene #crime #criminalistic #forensiccriminology #forensicyoutube #forensicstudy #easyforensic #easynotesonforensic https://www.instagram.com/p/CAdQmaNDy-w/?igshid=1ifcdy02u66w2

[forensicfield]

Forensic Question & Answer ________________________ #forensicfield #forensicscience #forensicscientist #forensicpsychology #forensicmcq #forensicquestionandanswer #forensicquestion #forensicknowledge #forensicfact #forensicnews #criminology #crimescene #crime #criminalistic #forensiccriminology https://www.instagram.com/p/CAcWUB7D3g3/?igshid=b8sxr958dbs4

[forensicfield]

Practice Set 2. . .**************** Comment your answers to get the answers and another practice set. . Enhance your knowledge with @forensicfield. . Study with us.... . Like it, follow us, Comment your Answers. __________________________ ________________________ #forensicfield #forensicscience #forensicscientist #forensicpsychology #forensicmcq #forensicquestionandanswer #forensicquestion #forensicknowledge #forensicfact #forensicnews #criminology #crimescene #crime #criminalistic #forensiccriminology #mcqs #forensicquiz #forensicmcq #learning #forensiclearner #forensicnotes https://www.instagram.com/p/CArvzS5jCzG/?igshid=emgg7b0txodm

[forensicfield]

Practice Set 1. . .**************** Comment your answers to get the answers and another practice set. . Enhance your knowledge with @forensicfield. . Study with us.... . Like it, follow us, Comment your Answers. __________________________ ________________________ #forensicfield #forensicscience #forensicscientist #forensicpsychology #forensicmcq #forensicquestionandanswer #forensicquestion #forensicknowledge #forensicfact #forensicnews #criminology #crimescene #crime #criminalistic #forensiccriminology #mcqs #forensicquiz #forensicmcq #learning #forensiclearner #forensicnotes https://www.instagram.com/p/CAe3Qlhj_pp/?igshid=aj1o921vvweo

[forensicfield]

Questions- What is difference between Poison, Toxin And Venom?

Answer- Poison, toxin, venom are terms for any substance that injures the health or destroys life when absorbed into the system. ☣ Poison: Poison, in biochemistry, a substance, natural or synthetic, that causes damage to living tissues and has an injurious or fatal effect on the body. ☣ Toxin: A toxin is a poison produced by an organism. ☣ Venom: Venom is especially used of the poisons secreted by certain animals, usually injected by bite or sting.

Question- What quantity of a poison would be necessary to produce a lethal out-come in a human victim?

Answer- There are several considerations to keep in mind for poisoning. Studies revealed that small doses of a substance might be harmless or beneficial, whereas larger doses could be toxic. This is now known as the dose-response relationship, a major concept in toxicology. A poison is any substance that can cause illness or death when ingested in small quantities. This definition excludes the multitude of substances that cause damage if ingested in large quantities. For example- A dose of aspirin (acetylsalicylic acid) that is harmless to an adult may be poisonous to an infant. Similarly, an elderly person’s tolerance of a substance may be much lower than that of a healthy young adult. Lethal Amount of poison is also depend on person, poison and many other factors, such as; Lethal dosage often varies depending on the method of administration; for instance, many substances are less toxic when administered orally than when intravenously administered.