The main idea is the distinction between acts that are illegal because the law says so versus acts that are morally wrong in themselves. Mala prohibita refers to acts illegal due to statutes or regulations, not because they are inherently wrong. Examples include speeding, illegal drug possession, or tax evasion—these are crimes because the law prohibits them, even if their moral acceptability might be debated in some cases. In contrast, mala in se covers offenses that are wrong by their very nature, such as murder or robbery, which society views as morally wrong regardless of specific statutes. Mens rea is about the mental state or intent behind an act, which affects culpability but isn’t itself a label for why an act is illegal. The deprivation model is a criminology concept explaining why people may commit crimes based on deprivation or lack of resources, not a category of illegal acts. So the term that denotes acts illegal because of statutes rather than inherent moral wrongfulness is mala prohibita.

Parens Patriae is the principle that the state acts as guardian of minors, stepping in to protect a child’s welfare when a parent or guardian cannot or will not. In practice, this justifies government authority to intervene in family matters—removing a child from an unsafe or neglectful home, placing them in foster care, or arranging other arrangements in the child’s best interests. The focus is on ensuring safety and well-being when those needs aren’t being met within the family. Stare Decisis is about following legal precedent in court decisions, not about child welfare or guardianship. The Social Reality of Crime is a criminology perspective that emphasizes social factors in crime rates rather than protective state intervention in families. Psychoanalytic Theory is a psychological framework about unconscious motives, not a legal doctrine governing how the state protects children.

Criminology is the study of crime, its causes, and the social responses to it. It explores why people commit offenses, how crime rates fluctuate, and how laws, policies, and institutions influence crime. It draws on multiple disciplines to understand patterns and develop strategies to prevent and control crime. The other terms don’t fit because corpus delicti refers to the body of the crime—the facts that establish that a crime occurred—rather than the study of crime. Choice Theory is a specific approach within criminology that emphasizes rational decision-making by individuals, not the entire field. Cultural Deviance Theory is another theory explaining crime through subcultural norms, not the broad study itself.

The value of the property often determines how theft is charged. When the item taken is worth less than a set amount—here, $500—the offense is petty theft, typically a misdemeanor. This contrasts with grand theft, which covers higher-value property and is usually a felony. Robbery, on the other hand, involves taking property from a person through force or intimidation, no matter the value. Burglary involves unlawfully entering a building with intent to commit a theft or felony inside, not simply the value of the stolen item. So, taking property under $500 fits petty theft because it relies on the lower value threshold.