Criminal procedure: warrants; statutory warrant requirement; provide for department of environment, Great Lakes, and energy. Amends 1994 PA 451 (MCL 324.101 - 324.90106) by adding sec. 1506.

HB 4421 amends Michigan's Natural Resources and Environmental Protection Act to require Department of Environment, Great Lakes, and Energy (DEGLE) agents to obtain a warrant or the property owner's consent before entering private property for enforcement activities. It explicitly states that the "open fields doctrine" (which typically allows warrantless searches in open areas) does not apply to DEGLE searches. This change directly affects DEGLE enforcement officers and property owners/occupants by imposing standard warrant requirements for all searches on private land. The policy shift ensures DEGLE must follow similar procedural rules as law enforcement when conducting inspections or investigations on private property.