Final answer:
The condition that demands deception causing injury or loss in fraud cases is injury or loss. This legal principle is critical for establishing the negative consequences of deception on the victim and is contrasted by other conditions such as materiality, intent, and concealment.
Step-by-step explanation:
The condition that requires for deception to have caused injury or loss to the victim of the fraud is injury or loss. This condition underscores the significance of the deception leading to a tangible negative impact on the victim. For example, in cases where a public official is defamed, they must prove actual malice to recover damages; this indicates that the injury is a material factor in legal proceedings. Similarly, in research ethics, deception is employed cautiously to ensure that it does not cause harm to participants.
In contrast, 'materiality' relates to the significance of the fraudulent information to the decision-making process, 'intent' refers to the deliberate nature of the fraudulent act, and 'concealment' involves hiding facts or information pertinent to the fraud.