42. Using a confidential informant to provide information to support a search warrant:
is the equivalent of an anonymous tip and must be corroborated.
requires the reputation of the confidential informant be part of the documentation supporting the
search warrant.
violates the Fourth Amendment.
is common and generally accepted as long as the information has some reliability.
43. Law officers must knock, identify themselves, state their purpose and await a refusal or silence before they
enter private premises on a warrant. In this case, the violation of this rule:
renders the search illegal and the evidence inadmissible.
must have been specifically authorized by the search warrant.
is excused since the officers expected armed resistance.
does not merit judicial review, even if the suspect complains.
Case 15.2
Officer McElroy suspects that Leon is selling drugs. One day he follows Leon to a park and notices that he
meets with another man and passes him a newspaper. Unfortunately, Officer McElroy is unable to approach the
young men without being seen because of the open area and both men quickly disappear into the trees. Since
Officer McElroy does not think he was seen, he returns to the park, but hides behind some trees and uses his
binoculars to observe another meeting between Leon and another young man. He is able to adjust his binoculars
to see that Leon places a baggie of marijuana inside the newspaper immediately before the meeting. The other
young man hands Leon paper money and receives the rolled up newspaper from Leon. Officer McElroy sneaks
up on the two young men and overhears the buyer say, “I hope this weed is better than the last stuff you sold
me.” Officer McElroy steps out from behind a tree and arrests both men.
44. Leon challenges the use of binoculars as an invasion of his privacy. What is likely to occur next?
Leon will not succeed because the illegal transaction occurred in plain view of the police officer.
The arrest is invalid since, without the binoculars, Officer McElroy would not have seen sufficient
evidence of the crime to justify the arrest.
Surveillance of this type will require a court order.
Officer McElroy will need to show he did not have sufficient time to secure a court order to use the
binoculars.