The USG has found many advantages in stupifying and lowering the attention span of their subjects. Convictions are now easier to get than ever before. It is today commonplace to have body-less homicide cases and totally circumstantial convictions.
It only appears so. The scientific method depends on measurability, repeatability, and verifiability. Most forensic disciplines are not repeatable or verifiable. Two different forensic examiners can come to two different conclusions. Then what happens?
The following areas are all pseudoscientific: ballistics, fingerprints, hair/fibers, tool marks, glass, soil, shoe impressions. DNA, toxicology and serology are the only areas that are truly scientific.
In science, we need condidence levels, a number. There’s a sample and then there are probabilities assigned. How unique is that fiber? How unique are the markings on that bullet? Have all guns been tested, or even an adequate portion of them?
Fingerprints are supposed to …..….be both unique and persistant. “Each person has his own prints and they never change over time.” Yet, only a small portion of the Earth’s population has ever been printed.
Entire fingerprints do tend to be unique. But partial prints can also be used, and these CAN be similar across populations.
There was a famous case from 2004. A big turrist bombing in Spain. Investigators found a partial. This was run on international databases and matched an American.
His name was Mayfield. The FBI rounded him up and was ready to convict him on the partial alone. They would have won too and he’d have gotten life without parole.
Eventually Mayfield was exonerated. Spanish authorities found a partial with more detail and the two partials did not match. Forensic evidence has put many innocent Americans in prison, more than any other country on Earth.
There is a riddle in criminalistics:
If forensic technology is so good, why is the homicide clearance rate going down?
In 1960, it was 95%. Today, it is around 66%.
Crimes are solved because people talk. Crimes have been solved for thousands of years before modern forensics.
I would say the primary value of forensics is as a bluff-out. “Well, we found your blood at the scene…how do you explain that? Now, if you cooperate with us, we PROMISE to tell the prosecuter that you were honest….”
Right and wrong don’t matter. The USA is already a police state, and has been so since at least 1975. We have the most prisons, the most laws, the most police brutality, and longest sentances.
America wants to increase its prison occupancy rate and make more money for its private prison system. America’s legal just-us system is a giant vaccum and a terrific money maker for them. Just as no-fault divorce was a bonanza for the lawyers, modern forensics is a bonanza for law enforcement. Don’t expect it to go away anytime soon.