Responsibility may depend on who planned, managed, owned, maintained, or controlled the event or property.

Holiday weekends often bring heavier traffic, longer drives, fatigue, unfamiliar roads, construction, and impaired or distracted drivers.

Save photos, packaging, warnings, event information, medical records, incident reports, and witness names.

A driver may be responsible if careless driving contributed to the bike or scooter crash.

Document the vehicle, road surface, signs, injuries, witnesses, app records, and treatment.

Responsibility may depend on who owns, manages, maintains, or controls the area.

Often more than one party: the truck driver, the trucking company, the cargo loading company, or the maintenance provider. Federal regulations and the truck's black box data usually determine who is responsible.

Commercial trucks record speed, braking, and hours of operation electronically. That data can prove what happened in the seconds before a crash — but it can be overwritten, so it must be preserved quickly with a preservation letter.