Preserve from each actual custodian
Unchanged site, condition, access, fall protection, trench, scaffold, electrical source, material, vehicle, machine, tool, photographs, measurements, witnesses, and video: Injured person, coworkers, responders, Southfield Police, city FOIA staff, the Building and Engineering departments, Oakland County, businesses, employers, property managers, contractors, and insurers maintain separate systems. Site and image sources may include office and medical campuses, hotels, garages, apartments, stores, traffic-facing properties, fleet cameras, dashcams, and vehicle data systems Owner, developer, construction-manager, general-contractor, subcontract, scope, schedule, change order, daily report, meeting, and actual-control records: Property owner, developer, construction manager, general contractor, subcontractors, employer, designers, suppliers, and project-management systems Permit, plan, inspection, safety program, hazard analysis, training, toolbox talk, incident, MIOSHA, maintenance, and equipment files: Southfield building permits and inspections, Engineering right-of-way records, owners, property managers, general contractors, subcontractors, safety staff, equipment providers, and MIOSHA Employment, workers compensation, third-party insurance, medical, wage, functional, lien, and future-care proof: Corewell Health William Beaumont University Hospital, Henry Ford Providence Southfield Hospital, Henry Ford Hospital, and Detroit-area trauma providers; employer and carrier, non-employer defendants and insurers, treating providers, unions when applicable, family witnesses, and the injured worker