Wis. Stat. § 943.07: Criminal damage to railroads.

(1) Whoever intentionally causes damage or who causes another person to damage, tamper, change or destroy any railroad track, switch, bridge, trestle, tunnel or signal or any railroad property used in providing rail services, which could cause an injury, accident or derailment is guilty of a Class I felony.

(2) Whoever intentionally shoots a firearm at any portion of a railroad train, car, caboose or engine is guilty of a Class I felony.

(3) Whoever intentionally throws, shoots or propels any stone, brick or other missile at any railroad train, car, caboose or engine is guilty of a Class B misdemeanor.

(4) Whoever intentionally throws or deposits any type of debris or waste material on or along any railroad track or right-of-way which could cause an injury or accident is guilty of a Class B misdemeanor.