The police and forensic experts should always work on a full copy through a write blocker like a tableau or on an image file and always compare hashing value with the original one ...
As I know changing LBA content is forbidden, skipping sectors filling with defined pattern on the copy and hashing declaring skipped sectors MAY be allowed.
As I know changing LBA content is forbidden, skipping sectors filling with defined pattern on the copy and hashing declaring skipped sectors MAY be allowed.