The emergency info on the lock screen is intended for helpers who find your device. After the notification is tapped on the lock screen, the details are visible without unlocking the lock screen. You can store the information for this in the app settings:

• Device owner
• Illnesses
• Medication
• Emergency contacts
• Vaccinations
• Living wills (with links to external providers and documents in the cloud)
• and much more...

 Check the display on the lock screen after your input in the settings.

This function is also suitable for lost devices, where an honest finder can return the device via the emergency info.