MI HB4921

Establishes "speed detection systems" as automated radar or lidar devices that capture images of vehicles exceeding school zone speed limits and authorizes their use by county and local authorities on state highways (with permission) and local roads.

Requires 30-day public awareness campaign before first use of speed detection systems, including school board presentation; violations during this period result in written warnings only, while subsequent violations incur civil fines of $100-$150.

Creates evidentiary framework allowing sworn police officer statements based on recorded images as prima facie evidence, with rebuttable presumption that registered vehicle owner committed violation unless they file affidavit or provide operator information.

Permits counties and local authorities to establish alternative administrative hearing procedures for contested citations, with appeal rights to district court; allows $50 additional fee for non-payment and authorizes debt collection.

Directs all fines collected from speed detection system violations to be paid to county or local authority that installed the system for cost recovery and public safety programs; requires report to legislature by 5 years on citation numbers, installation costs, fines collected, and system effectiveness.