Crim Pro Extra Flashcards
When the police seek a warrant to search or arrest, the Fourth Amendment precludes issuance of the warrant absent a finding of
probable cause
The probable cause requirement applies differently depending on whether a search or a seizure is involved. When the police conduct a search, the probable cause requirement demands that..
the police be able to show that the fruits, instrumentalities, or evidence of crime exist, and can be found at the place to be searched.
See Illinois v. Gates, 462 U.S. 213 (1983)
When a arrest is involved, probable cause requires a showing that
a crime has been committed, and that the person to be arrested committed it.
See United States v. Watson, 423 U.S. 411 (1976).
Probable cause as literally written requires to prove that..
that the fact is “more probable than not.”
As applied, the requirement of probable cause demands proof
The courts make what they regard as a “practical, commonsense” decision about whether sufficient cause exists to permit a search or seizure that deals with “probabilities” rather than a precise test.
The finding of probable cause must be
“particularized”
There must be probable cause to believe that the person to be searched is in possession of illegal narcotics instead
The finding of probable cause must relate to the individual in question.
i.e. Even though there is a high level of drug activity on the street, it is unreasonable to conclude that everyone on the street is in possession of illegal drugs
T or F: The fact that an individual is in a “high crime” area should not be considered in the probable cause determination.
False. It should.
In determining whether probable cause exists, courts focus on the “totality of the circumstances.”
While the fact that a suspect is in a high crime area is not enough by itself to satisfy the probable cause requirement, it is a “factor” to be considered in the “totality.”
T or F: Even though a court may consider other factors, it should not be allowed to consider crime statistics in the probable cause determination.
False, it should.
In determining whether probable cause exists, courts focus on the “totality of the circumstances.”
Suppose that a police officer has “reasonable cause” to believe that an automobile driver is in violation of the law by driving with a burnt out headlight at night.
The officer pulls the driver over and cites him for “defective equipment.” As the officer gives the driver his ticket, the officer asks the driver for permission to search the trunk. The driver refuses.
Consider whether the following statements are valid.
T or F: Since an honest, law-abiding, citizen has nothing to hide, and would cooperate with the police, the driver’s refusal to consent to the search gives the officer probable cause to search the trunk.
False.
individuals have a constitutional right to refuse consent, see Schneckloth v. Bustamonte, 412 U.S. 218 (1973), the driver’s refusal to consent does not, by itself, give the officer probable cause to search the trunk.
T or F: Probable cause would not exist after refusal of consent, unless there was additional evidence (e.g., after the officer asked for consent, and it was refused, he happened to notice drug paraphernalia on the seat of the vehicle).
True.
Must a consenter be aware the they have the right to refuse consent in order for a search via consent to be valid under the 4th amendment?
False, it only needs to be voluntary. One need not have knowledge of the fact that they have the right to refuse consent for voluntary search.
A police officer applies for a search warrant. In support of the warrant, a police officer offers an affidavit which states that he has “received reliable information from a credible person” to the effect that narcotics can be found at a suspect’s house. The affidavit also states that the officer “believes” that the informant’s information is correct.
Suppose that you are the magistrate assigned to decide whether a warrant should issue to search the suspect’s house. Based on these facts, is there probable cause to issue the warrant?
No. Probable cause did not exist because the allegations were inadequate to satisfy the probable cause requirement. The allegations were too vague about why the informant was credible and reliable.
What is the test for evaluating informant testimony in making probable cause determinations?
Under this so-called Aguilar-Spinelli test, the following factors should be considered in evaluating informant testimony for purposes of the probable cause determination:
the magistrate must focus on whether there is evidence regarding the
1) informant’s veracity (or credibility), as well as regarding the
2) informant’s “basis of knowledge.”
In other words, how did the informant come by the information?
Aguilar-Spinelli does not require that the informant’s testimony be taken before a court reporter or that it be under oath.
a police officer received a tip from an informant who had previously provided information to the officer.
Since the informant’s prior tips had proved accurate, the credibility prong of the Aguilar-Spinelli test was satisfied. However, the informant told the officer nothing about how he came by his information. As a result, if the basis of knowledge prong were strictly applied, it was not satisfied. However, the tip stated that a man named Draper had gone to Chicago the day before by train, and that he would return to Denver by train on one of two specified mornings carrying three ounces of heroin. The informant also provided detail regarding how Draper would be dressed.
A police officer went to the train station on the specified mornings, and found a man matching the description dressed as the informant said that he would be dressed. What did the Draper Court hold regarding whether probable cause existed?
The Court held that probable cause existed, notwithstanding a lack of information regarding the informant’s basis of knowledge, because the informant provided a detailed tip that was verified by an independent police investigation.
What about anonymous tips, how does the court find probable cause?
Corroborated statements by an unknown informant can amount to probable cause. The Court replaces the Aguilar-Spinelli test with a “totality of circumstances” test, but retains the Aguilar-Spinelli standards as factors to be considered in the “totality.”
Can the police rely on “canine sniffs” alerts to establish probable cause?
Yes. the prosecution can establish the canine’s reliability through his performance during training.
Canine perfection is not required to establish probable cause.
two police officers stop John Jay’s vehicle for speeding. While one officer is checking Jay’s driver’s license and registration, and issuing a citation, another officer walks a drug sniffing dog around the vehicle. The dog, who is trained to focus only on certain types of drugs (marijuana, heroin and cocaine) alerts to the driver’s side door. On the assumption that they have probable cause to believe that there are illegal drugs in the vehicle, the police search the vehicle. They do not find any of the drugs that the dog is trained to detect. However, they do find crystal meth, and arrest Jay for possession.
In the ensuing criminal proceeding, Jay claims that the police did not have probable cause to search his vehicle because the drug sniffing dog was not reliable as evidenced by the false alert. Did the officers have probable cause to search Jay’s vehicle?
the fact that the police were unable to find any of the drugs for which the dog was trained to alert does not deprive the police of probable cause to search the vehicle.
Additionally, the fact that there might have been a “false alert,” the dog might still be deemed reliable based on his prior performance during field training.