What is infrared luminescence? Describe how it can be used to detect alterations or erasures in a document.

What will be an ideal response?


Infrared luminescence is the emission of infrared light by an object that is exposed to blue-green light. An alteration made to a document with ink differing from the original can sometimes be detected by illuminating the document with blue-green light and using infrared-sensitive film to record infrared light emitted by the different ink. Infrared luminescence can also reveal writing that has been erased because invisible residues of the original ink remain embedded in the paper even after erasure.

Criminal Justice

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Which of the follow system is a system of inmate labor that was in use by the early twentieth century?

a. Punitive system b. Contract system c. Reform system d. Treatment system

Criminal Justice

It is legal to burn a cross as _____________ conduct, but illegal to burn a cross as ___________ conduct

a. expressive, intimidating b. offensive, fighting c. unconscionable, legal d. welcoming, racist

Criminal Justice

A 15-year-old female appeared in front of a judge for her first offense, which was a misdemeanor assault charge against another student at her school. A 16- year-old male also appeared in front of the same judge for his 1st offense of theft. One of the defendants got probation and the other was sentenced to detention. Based on cohort studies, which defendant would likely be the one who was placed

on probation? What will be an ideal response?

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The most realistic training is __________.

A. on-the-job training B. scenario training C. reality-based training D. situational training

Criminal Justice