Cameron Miranda
The use of mobile phones has proven to be a valuable resource for law enforcement agencies. Through proper legal processes, communication, photographs, web searches, location history, and deleted content are accessible to law enforcement. However, the law surrounding the search and seizure of mobile phones is complex and ever-changing. In most cases, the Fourth Amendment prohibits law enforcement from seizing someone’s cell phone without a judicial warrant. But there are certain exceptions to this rule, such as exigent circumstances, where officers have reason to believe that they must search a phone now or never to avert a disaster.
| Characteristics | Values |
|---|---|
| Can law enforcement search your phone without a warrant? | In most cases, the Fourth Amendment prohibits law enforcement from searching a phone without a warrant. However, there are certain exceptions, such as when the phone is seized as evidence during an arrest, when there is a risk of data loss, or when there are exigent circumstances, such as a ticking bomb or missing child. |
| Can law enforcement access data from tech companies? | Yes, law enforcement can obtain user data directly from tech companies through various forms of legal requests, including geofence warrants, keyword search warrants, and administrative subpoenas. Tech companies may also voluntarily share data with law enforcement in some cases. |
| What data can be accessed with a warrant? | A search warrant must specify the device to be searched and the data to be seized, including the type of data and the date range. Law enforcement can access communication, photographs, web searches, location history, and deleted content with a warrant. |
| What happens if the phone is searched without a warrant? | If a phone is searched without a warrant or probable cause, a defense attorney can file a "motion to suppress evidence," arguing that the search was illegal and any evidence obtained should be excluded from the case. |
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What You'll Learn
Law enforcement accessing user data from tech companies
Law enforcement agencies can access user data from tech companies in several ways. This includes through legal requests, such as subpoenas, court orders, search warrants, and, in rare cases, National Security Letters (NSLs). These requests can be made to tech companies like Google, Apple, and Meta, and the companies can decide whether to grant access to user information. For example, Google received over 39,000 requests for user information in the last six months of 2020 and complied with over 80% of them.
The type of legal request made by law enforcement can vary in scope and legal weight. Three types of requests that have sparked concern among privacy experts are geofence warrants, keyword search warrants, and administrative subpoenas. Geofence warrants allow law enforcement to access the device information of all users who were at a certain place at a certain time, while keyword search warrants allow access to the information of anyone who searched for specific terms within a given time frame. Administrative subpoenas carry less legal weight, as they don't require a judge's signature, but law enforcement can take companies to court if they refuse to comply.
When making a legal request, law enforcement must specify the location to be searched. In the case of a mobile device, the device itself is the location, and the search warrant must include specific data to be seized, such as photographs, web searches, location history, or deleted content. Law enforcement must also properly document their pedigree, including their training and experience, to testify at a suppression hearing.
Additionally, data brokers and surveillance tech companies can collect and sell user data to law enforcement agencies. This data can include location information, purchase history, and social media activity. While tech companies often include clauses in their privacy policies stating that they will not share user data unless required by law enforcement, it is challenging to ensure complete data security and privacy.
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Search warrants and probable cause
The Fourth Amendment protects citizens against unreasonable searches and seizures, requiring law enforcement to obtain a warrant based on probable cause. However, the law allows for reduced privacy expectations for information shared with third parties, such as cellphone companies. This is known as the "third-party doctrine".
In the case of Riley v. California (2014), the Supreme Court ruled that police must obtain a warrant before searching the contents of a cellphone seized after an arrest, reversing the lower court's decision. This ruling set a precedent for warrant requirements in relation to cellphone data.
When seeking a search warrant for a suspect's cell phone, judicial officials must determine the type of evidence required to support the issuance of the warrant. Factors that may be considered when deciding whether probable cause exists include:
- Whether the suspect is believed to have acted alone or with others, as those who act with accomplices may communicate using cell phones.
- The nature of the offense. For example, drug distribution may involve cell phone communication, whereas assaults may not.
- Witness reports of the suspect possessing or using their cell phone in connection with the offense.
- The suspect's phone usage habits, if known.
- The time between the crime and the planned search.
- The functions and capacities of the phone.
It is important for law enforcement officers to properly document their pedigree when obtaining a search warrant. Each warrant requires a specific location to be searched, which, in the case of a mobile device, is the device itself. The warrant must also be specific about which data is to be seized and may include a date range.
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Privacy protections and the Fourth Amendment
The Fourth Amendment is one of the main constitutional privacy protections in the United States. It prohibits unreasonable searches and seizures without a warrant, stating that law enforcement must obtain a warrant when a search would violate a person's "reasonable expectation of privacy".
The Fourth Amendment also requires that warrants be supported by probable cause and describe specific locations and items to be searched and seized. In the case of mobile devices, the location is the device itself, and for mobile phone records, it is the physical location of the mobile phone provider.
The advent of the internet and digital technologies has raised new questions about when and how the Fourth Amendment should apply to electronic data. Courts have been grappling with whether exceptions to the warrant requirement developed before cell phones and the internet still apply to electronic data.
In two seminal cases, Riley v. California (2014) and Carpenter v. United States (2018), the Supreme Court recognized that people have a reasonable expectation of privacy in the contents of their cell phones and their historical location information. In Riley, the Court decided that the "search incident to arrest" exception to the warrant requirement did not apply to cell phones. In Carpenter, the Court found that police needed a warrant to obtain long-term records of people's movements generated by their cell phones, refusing to expand the "third-party exception".
The Court's rulings in these cases demonstrate a reluctance to extend pre-digital warrant exceptions to new technologies and a recognition that new technologies can give the government increased surveillance powers. The Fourth Amendment aims to "place obstacles in the way of a too permeating police surveillance".
The balance between privacy protections and law enforcement access to data is a delicate one. Improperly navigating this balance could result in losing mobile phone evidence through the "fruit of the poisonous tree" doctrine, which states that evidence obtained from an illegal search is not admissible in court.
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Motion to suppress evidence
In the United States, law enforcement agencies can access your data in several ways, including directly from your phone or from tech companies through various forms of legal requests. When it comes to searching your phone, law enforcement must follow proper legal processes and best practices. If you believe your phone was searched improperly, you can file a motion to suppress the evidence obtained during that search.
A motion to suppress evidence, also known as a suppression motion, can be filed during the pretrial stages of criminal proceedings. This motion argues that the evidence was obtained through an unlawful or unreasonable search and seizure and should not be admitted in court. The Fourth Amendment to the U.S. Constitution protects citizens against unreasonable searches and seizures, and any evidence obtained in violation of this right can be excluded from the trial.
To successfully suppress evidence obtained from a phone search, several factors need to be considered. Firstly, the legality of the search itself is crucial. Law enforcement may conduct a search without a warrant if it falls within certain exceptions, such as consent, plain view, or exigent circumstances. However, if the search does not fall into a valid warrant exception, it may be deemed unreasonable and illegal, violating your civil rights. In such cases, a motion to suppress evidence can be filed, arguing that the search was done without a valid warrant.
Secondly, the specificity of the search warrant is essential. A search warrant must be particular in describing the place to be searched and the items to be seized. In the case of mobile devices, the warrant should specify the device, such as a black Apple iPhone 13 Pro Max, and the data to be seized, including any photographs, messages, or other relevant information. Lack of specificity in the warrant may render it defective, providing grounds for a motion to suppress any evidence obtained.
Additionally, the manner in which the search is conducted can impact the admissibility of the evidence. Law enforcement must follow proper procedures when reviewing data on a mobile device. They should scan the data to determine its relevance to the specific crime under investigation, disregarding any information that is not related. Deviating from this approach and conducting a broad, exploratory search may provide grounds for a motion to suppress any evidence obtained.
It is important to note that the burden of proof for a motion to suppress rests on demonstrating, by a preponderance of the evidence, that the search was unlawful or unreasonable. This can include demonstrating that the search warrant was defective, that the evidence was obtained without a valid warrant, or that the search violated your civil rights. If successful, the motion will result in the exclusion of the evidence from the criminal trial.
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Geofence, keyword and administrative subpoenas
Geofence warrants, keyword search warrants, and administrative subpoenas are three types of legal requests that have sparked concerns among activists and experts. These requests allow law enforcement to access user data, including information from mobile devices such as phones.
A geofence warrant allows law enforcement to identify all users who were in a specific location at a given time. This type of warrant has been criticised for being overly broad and violating constitutional protections against unreasonable searches. In a process called "the dump", law enforcement first obtains anonymised device IDs and time-stamped location coordinates for all devices in a specified area during a specific time frame. This information is used to create a spreadsheet with details such as device ID, date, time, latitude, and longitude for each device.
Keyword search warrants allow law enforcement to access information about individuals who searched for specific terms or keywords within a particular time frame. This type of warrant has also raised concerns about privacy and civil rights, as it can be used to target individuals for sensitive searches, such as women researching abortion-related services.
Administrative subpoenas carry less legal weight than other requests. Law enforcement can issue these subpoenas without a judge's approval, but they are not self-enforcing. Google has started charging law enforcement agencies $45 for a subpoena, $60 for a wiretap, and $245 for a search warrant to offset the costs of complying with these requests.
Law enforcement can also access user data directly from tech companies, sometimes simply by asking for it. Google, for example, received over 39,000 requests for user information in the last six months of 2020 and provided user info in response to more than 80% of those requests. Additionally, mobile devices can be crucial evidence in criminal cases, and law enforcement can use mobile device forensic tools to bypass lock screens and encryption if they have a warrant.
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Frequently asked questions
In most cases, a judicial warrant is required for law enforcement to search your phone. However, there are exceptions. For instance, if you are on probation or parole, or if there are exigent circumstances, such as a ticking bomb or missing child, a warrant may not be needed.
If your phone is searched without a warrant, you have the legal right to file a "motion to suppress evidence". This is a pretrial motion where you or your criminal defense attorney asks the court to exclude evidence because it was gathered from an illegal search.
Yes, law enforcement can access your data directly from tech companies through various forms of legal requests. Google, for example, received over 39,000 requests for user information between July and December 2020 and complied with over 80% of them.
There are a handful of different types of law enforcement requests, including geofence warrants, keyword search warrants, and administrative subpoenas. Geofence warrants allow agencies to seek device information from users who were at a certain place at a certain time, while keyword search warrants allow access to the information of anyone who searched for specific terms within a given time period.
