Arson to immovable property in which offender has no interest

Question 1

What are the elements for Arson involving Immovable Property:

(Intention)
(Claim)
(Action)
(Property)
(Interest)

Answer 1

267(1)(b) Arson

Intentionally or recklessly,
and without claim of right,
damages by fire or by means of any explosive
any immovable property, or any vehicle, ship, or aircraft,
in which that person has no interest;

Question 2

What percentage of Molotov cocktail parts produce identifiable fingerprints?

Answer 2

20%