Chat with AIExam 16: The Crime Scene, The Chain of Custody Requirement, and the Use of Fingerprints and Trace Evidence
The Court held that law enforcement officers may make "warrantless entries and searches when they reasonably believe that a person within is in need of __________ aid"
(45) 
VerifiedD
Discuss the ways in which a person may alter a crime scene in order to obstruct officers from conducting an investigation.
(27) VerifiedThere are several ways in which this may happen.The first would be altering the crime scene by destroying evidence.The second way in which a person may alter a crime scene is by planting False evidence at the crime scene to try and mislead investigators.Thirdly, it is possible to plant False DNA evidence at a crime scene.Investigators feel that this type of crime scene alteration is easier than planting False fingerprints.
Discuss trace evidence and provide examples of what is commonly considered trace evidence.
(29) VerifiedThe term trace evidence is usually very loosely defined; however, it most often is applied to minute or microscopic bits of materials that are not immediately apparent to even a trained investigator.Thus, trace evidence is usually in the hard- to-find category.Because trace materials resulting from exchanges are less likely to excite the attention of the criminal, or even to be apparent to him, there is far less probability that the criminal will deliberately eliminate these materials than is the case with larger items of evidence or latent fingerprints.Examples would include glass fragments, fibers from clothing or carpeting and strands of hair.
The term "____________" is used to describe minute or microscopic pieces of evidence.
(32) It can be determined by fingerprint analysis if a person has touched drugs.
(32) Fingerprints are used less and less as other forms of identification are both plentiful and accurate.
(39) According to Brendlin v.CA, a passenger in a vehicle could not object to the lawfulness of a traffic stop.
(37) Fingerprint evidence is circumstantial evidence rather than direct evidence.
(33) Protective sweeps were approved by the U.S.Supreme Court in Maryland v.Buie.
(37) If police arrive at the scene and detect a murder, they may make a quick sweep through the building to see if the offenders could be hiding there.
(28) It is an exception to the warrant requirement if police have, at a minimum, _____________ to believe that evidence will be destroyed before they can obtain a warrant.
(33) The term "_____________ circumstances" means emergency circumstances.
(36) In general, before physical evidence can be admitted, its ____________ of custody must be shown.
(34) An ________ exists if law officers have no time to obtain a search warrant and have probable cause to believe that evidence will be destroyed or moved to an unknown place.
(36) The term "____________" is used to describe minute or microscopic pieces of evidence.
(38) The Supreme Court held in ________ that tire tracks could be used as evidence if there was no violation of the privacy right.
(36) For many types of evidence to be admissible, the prosecution must prove the chain of
(33) Proof of chain of custody is usually not required in ____________ and theft cases.
(33) 
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