What was violated when police demanded to search Otis's apartment without a warrant?

The violation in this scenario pertains to the Fourth Amendment rights, which protect individuals from unreasonable searches and seizures. The Fourth Amendment establishes that law enforcement must generally obtain a warrant, supported by probable cause, before conducting searches of private property, such as an apartment. In this case, the police's demand to search Otis's apartment without a warrant indicates a disregard for this constitutional protection, meaning the search could be deemed unlawful.

The First Amendment protects freedoms concerning religion, expression, assembly, and the right to petition, which does not relate to searches of property. The Fifth Amendment provides protection against self-incrimination and ensures due process, but it doesn't directly relate to search and seizure matters. The Eighth Amendment prohibits excessive bail, excessive fines, and cruel and unusual punishments, which again, does not apply to the context of a warrantless search. Thus, the underline issue here is clearly the infringement of the Fourth Amendment rights, affirming the necessity for warrants in protecting individuals from arbitrary intrusions by the state.