DNA analysis can identify or exonerate criminals, determine paternity, and save lives. It can also be used to identify endangered species and authenticate rare treats. DNA laws vary by location. A deoxyribonucleic acid analysis, or DNA analysis, can legally be used to identify or exonerate criminals or crime suspects. It can also be used to […]
Bloodhounds are the only dogs whose evidence is admissible in US courts due to their exceptional sense of smell, with 230 million olfactory receptors. German Shepherds and Belgian Malinois are also commonly used in law enforcement. Horses are used for crowd control. The bloodhound is the only breed of dog whose evidence is admissible in […]
Smiling is banned in passport photos in some countries due to security measures. A closed-mouth smile may be acceptable, but a teeth-exposing smile is not. Biometric scanning devices require consistent and accurate photos for comparison. Smiling in passport photos has indeed been banned in a number of countries. In the United States, State Department guidelines […]
