What type of tort involves an infringement of a protected interest without an agreement between the parties?

The type of tort that involves an infringement of a protected interest without an agreement between the parties is known as a civil tort. Civil torts are a branch of law that deal with wrongful acts leading to civil legal liability. They typically arise from a breach of duty that causes harm or loss to another individual, and they do not rely on any contractual relationship between the parties involved.

In contrast, a contractual tort specifically pertains to violations within the bounds of an agreement, which is not relevant in this case. Delict is a term often used in certain jurisdictions to describe civil wrongs similar to torts but may not directly apply across all legal systems, making it less precise here. Criminal torts, on the other hand, relate to activities that violate criminal law and lead to punishment by the state, which is distinctly different from the civil context of tort law. Thus, civil torts clearly align with the definition of non-agreement related infringements of protected interests.