In UCR terminology, a Structure is defined as which of the following?

• A. A tent or camping trailer
• B. An open field
• C. A vehicle
• D. Four walls, roof, capable of being closed

Answer: (D)

In this context, a structure is any enclosed place with walls and a roof that can be closed. That means buildings or rooms used for dwelling or business—houses, apartments, stores, factories, offices, etc.—fit the definition. The key is enclosure: four walls and a roof with a door or seal that can be closed.

This explains why a tent or camping trailer (not fully enclosed), an open field (no enclosure), and a vehicle (designed for transport, not a fixed enclosed space) don’t meet the definition. The distinction matters because crimes like burglary are defined by entering a structure, so only enclosed spaces count for that category.