Which classification of crime requires probable cause for an arrest?

Indictable crimes, which are more serious offenses that can lead to significant penalties, require probable cause for an arrest. This standard is necessary because these crimes involve a higher threshold of evidence due to their potential severity and the consequences associated with them, such as imprisonment or large fines. Probable cause means there must be a reasonable basis for believing that a crime has been committed and that the person being arrested is likely responsible for that crime.

In contrast, misdemeanors, while still offenses, may have more lenient standards for arrest compared to indictable crimes. Infractions typically involve minor violations that usually do not result in jail time and can often be resolved with fines, thus not requiring the same standard of probable cause. Traffic violations may also generally be addressed with citations rather than arrests, making the need for probable cause less applicable. Therefore, indictable crimes represent the classification that necessitates the higher standard of probable cause for arrest, ensuring that individuals are only apprehended when there is sufficient evidence supporting the action.