Who introduced the use of intelligence and psychological testing to officer selection procedures? ...

Who introduced the use of intelligence and psychological testing to officer selection procedures?
 
  What will be an ideal response?

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(Question #2) New York City, Washington, DC, San Francisco, and Minneapolis have this type of external complaint system.
 
  A) Class II B) Class III C) Class I D) Class IV

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(Question #3) ________ was instrumental in the establishment of the FBI.
 
  Fill in the blank(s) with correct word

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(Question #4) What was the first commission to fully analyze police conduct (and misconduct) in the 1930s?
 
  A) the McPherson Report B) the Knapp Commission
  C) the Wickersham Commission D) the Kerner Commission

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(Question #5) The first modern police force in the U.S. was developed in ________.
 
  Fill in the blank(s) with correct word