These sort of documents are usually necessary when bringing in devices with memory in them into secure areas. Security likes to know what is in a device and if

These sort of documents are usually necessary when bringing in devices with memory in them into secure areas. Security likes to know what is in a device and if there is any special procedure that needs to happen to wipe any non-volatile memory. If there's no way to zero out or replace any memory that may have stored sensitive data, the device cannot leave the area.