"Button" function can be used for revenge or a joke (prank) on a person who did not commit a crime, but became a victim of slander. In this regard, it is proposed to warn the user when using the app that a false call with a “button” can lead responsibility.
Taking into account laws, especially Due process clause of the Constitution, it is a state interest to protect not only the victim, but also presumed offender from unlawful and unauthorized punishment.
Title 18 PA § 503: Conduct which the actor believes to be necessary to avoid a harm or evil to himself or to another is justifiable if: (1) the harm or evil sought to be avoided by such conduct is greater than that sought to be prevented by the law defining the offense charged; (2) neither this title nor other law defining the offense provides exceptions or defenses dealing with the specific situation involved; and (3) a legislative purpose to exclude the justification claimed does not otherwise plainly appear.
Police need legal grounds to enter private property where an alleged crime is taking place. Therefore, a standard is needed to determine the legality of police entry into private property.