The FBI Used ESP
At one point, the FBI even looked into the use of ESP (extrasensory perception). This means that people who had high intuition levels, aka psychics, were used to help investigate crimes. This wasn't a very long partnership, but one FBI agent wrote, "There is no limit to the value which could accrue to the FBI, complete and undetectable access to mail, visual access to buildings. The possibilities are unlimited."
The FBI Labs Started Off Small
In 1932, the scientific wing of the FBI was just a one-man operation that was based out of a smoking lounge. Special Agent Charles Appel was by himself working on crime cases using a microscope, wiretapping kit, and chemicals to analyze handwriting and crime scene evidence. Now, the FBI Lab has 500 scientists.