Diving in Easter Island. The main attraction for divers is Easter Island, which lies 2,300 miles offshore. The island rests on a broad submarine volcanic ridge that supports 144 species of algae and 111 species of tropical and pelagic fish. Six species of corals grow in shallow water around the island, though there are no coral reefs.
Fingerprinting is still common and accurate no one person has the same fingerprint, palm print, foot print which means if a match occurs with a print it is very likely to be correct. Lie detectors are becoming more advanced, but until they are able to detects lies then they should not be used in court. Sources. http://www.howstuffworks.com... http://www.time.com... http://www.dna-geneticconnections.com...
Once the lab can give investigators a full report on these items, they can often be used to prove guilt in court. DNA is a type of physical evidence that is used in many cases, and it is considered highly reliable, especially for excluding suspects. Circumstantial evidence is all the actions that can imply guilt of a suspect.