The Police Executive Research Forum (PERF) assists citizens who want to have their say and be heard ...

The Police Executive Research Forum (PERF) assists citizens who want to have their say and be heard by police.
 
  Indicate whether the statement is true or false

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(Question #2) ________ is a research strategy in which the researcher observes a group by participating, to varying degrees, in the activities of the grou
 
  Fill in the blank(s) with correct word

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(Question #3) A population of people who engage in clandestine, socially disapproved, or concealed activities and who are difficult to locate and study is called ________ .
 
  a. hidden population
  b. difficult population
  c. invisible population
  d. missing population
  e. missing cases

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(Question #4) The Fifth Amendment protects juveniles from:
 
  A. Jury trials
  B. False confession
  C. Self-incrimination
  D. Interrogation