Immigration Enforcement Agent Exam - Question List

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6.

Police officers were led to believe that many weapons sold at a particular gun store were sold illegally. Upon investigating the lead, the officers learned that all of the guns sold by the store that was made by Precision Arms were sold legally. Also, none of the illegally sold weapons were .45 caliber.

What inference can be drawn by the officer?

  1. All of the .45 caliber weapons were made by Precision Arms
  2. None of the .45 caliber weapons were made by Precision Arms
  3. Some of the weapons made by Precision Arms were .45 caliber weapons
  4. All of the .45 caliber weapons were sold legally
  5. Some of the weapons made by Precision Arms were sold illegally
7. Impressions made by the ridges on the ends of the fingers and thumbs are useful means of identification, since no two persons have the same pattern of ridges. If finger patterns from fingerprints are not decipherable, then they cannot be classified by general shape and contour or by pattern type. If they cannot be classified by these characteristics, then it is impossible to identify the person to whom the fingerprints belong.
  1. If it is possible to identify the person to whom fingerprints belong, then the fingerprints are decipherable
  2. If finger patterns from fingerprints are not decipherable, then it is impossible to identify the person to whom the fingerprints belong
  3. If fingerprints are decipherable, then it is impossible to identify the person to whom they belong
  4. If fingerprints can be classified by general shape and contour or by pattern type, then they are decipherable
  5. If it is possible to identify the person to whom fingerprints belong, then the fingerprints can be classified by general shape and contour or pattern type
8. Explosives are substances or devices capable of producing a volume of rapidly expanding gases that exert a sudden pressure on their surroundings. Chemical explosives are the most commonly used, although there are mechanical and nuclear explosives. All mechanical explosives are devices in which a physical reaction is produced, such as that caused by overloading a container with compressed air. While nuclear explosives are by far the most powerful, all nuclear explosives have been restricted to military weapons.
  1. All explosives that have been restricted to military weapons are nuclear explosives
  2. No mechanical explosives are devices in which a physical reaction is produced, such as that caused by overloading a container with compressed air
  3. Some nuclear explosives have not been restricted to military weapons
  4. All mechanical explosives have been restricted to military weapons
  5. Some devices in which a physical reaction is produced, such as that caused by overloading a container with compressed air, are mechanical explosives
9. The alphanumeric coding of a fingerprint is a systematic description of the main patterns on the print. Within a certain metropolitan district, 90% of the population have fingerprints that can be alphanumerically coded.
  1. Can be alphanumerically coded, with a probability of 10%
  2. Can be alphanumerically coded, with a probability of less than 90%
  3. Cannot be alphanumerically coded, with a probability of 10%
  4. Cannot be alphanumerically coded, with a probability of up to 90%
  5. May be coded alphanumerically, but the probability is unknown
10. The printed output of some computer-driven printers can be recognized by forensic analysts. The “Acme Model 200” printer was manufactured using two different inking mechanisms, one of which yields a “Type A” micropattern of ink spray around its characters. Of all Acme Model 200 printers, 70% produce this Type A micropattern, which is also characteristic of some models of other printers. Forensic analysts at a crime lab have been examining a kidnap ransom note which clearly exhibits the Type A micropattern.
  1. Was printed on an Acme Model 200 printer, with a probability of 70%
  2. Was printed on an Acme Model 200 printer, with a probability of 30%
  3. Was not printed on an Acme Model 200 printer, with a probability of 70%
  4. Was not printed on an Acme Model 200 printer, with a probability of 30%
  5. May have been printed on an Acme Model 200 printer, but the probability cannot be estimated

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