What is one major limitation of consent searches?

The correct answer highlights that consent searches are limited by the boundaries established by the individual granting consent. This means that law enforcement officers can only search within the scope of what the person has agreed to allow. For instance, if an individual consents to a search of their vehicle, but specifies that officers can only look in the glove compartment, they cannot legally search the trunk unless further consent is obtained. This limitation ensures that the rights of individuals are upheld and that consent is not interpreted in an overly broad manner.

In the context of the other options, it's important to note that consent searches can be conducted in various locations, including outside, and there is no requirement for a search warrant if valid consent is given. Additionally, there is no rule restricting the number of officers present during a consent search, as long as they respect the terms of the consent given. Understanding these nuances is crucial for both law enforcement and individuals regarding search and seizure rights.