Please fact check what you say or state it as your opinion to avoid misinformation
'In The Back' is not an example of scratch vocals because it is a vocally finished track that was even meant to get a release in that vocal state on the 'Blood On The Dance Floor' album.It has been explained already to you, I believe.
Example of a scratch vocals would be in the song “In The Back”.
Scratch vocals are vocals that are recorded without the intention of keeping them or using them in the final stages of production (of the song).
Scratch vocals are recorded along with the rhythm parts of the song (drums, percussion, etc) in order to set the general vibe of the song and also to help the musicians play their parts.
Scratch vocals are also going to be later replaced with better vocals (on a song).
The 'Jam' original demo from the 'Dangerous' sessions (which is available on YouTube) is a clear example of his scratch vocals.