18 U.S.C. 81 addresses willful and malicious burning or attempted burning of specified property within the special maritime and territorial jurisdiction of the United States. A fire’s seriousness alone does not establish this federal jurisdiction. [1]
Start with the location
Section 7 defines the relevant jurisdiction and includes several categories of places and circumstances. The property address, ownership, federal enclave status, and applicable jurisdictional history can matter. Do not assume that every building owned by a federal employee is within federal territorial jurisdiction. [2]
Intent and covered property matter
The statute identifies buildings, structures, vessels, machinery, supplies, military stores, and specified other property. The government must prove the charged burning or attempt and required willful and malicious conduct. Accidental ignition is not automatically malicious arson. [1]
Separate penalty facts from the base offense
The statute provides enhanced treatment for specified circumstances, including a dwelling or danger to human life. Read the current charged provision before assigning a maximum. Other arson statutes, including section 844, use different jurisdictional connections.
For example, commercial use can be central under another federal statute even where section 81’s territorial requirement is absent.
The property and danger findings change the range
The ordinary provision authorizes imprisonment up to25 years and the specified fine framework. If the building is a dwelling or a person’s life is placed in jeopardy, the statute authorizes any term of years or life. Those facts are not merely descriptive details; they change the statutory exposure. The text also addresses conspiracy, not only a completed fire. [1]
For a territorial-jurisdiction issue, obtain the property’s actual legal status and the relevant section 7 category. A federal sign, lease, or postal address may not alone explain the full jurisdictional basis. For the enhanced property or danger allegation, review occupancy, use, timing, and the evidence connecting the defendant’s conduct to the charged condition. Keep these issues separate from insurance valuation and the fire investigator’s conclusion about origin. Each supports a different legal question. [1] [2]
Preserve fire-origin evidence, site records, photographs, and witness accounts. See explosives and arson under section 844 and search protection for business premises for related jurisdiction and investigation issues.
Primary sources
Sources checked: October 31, 2026.