will monitor and learn the writing styles of individual students and flag up content which shows considerable divergence from their previous work.

My work can only be used by Turnitin to check for plagiarism. As I see no reason for it being my responsibility to help Turnitin get better at doing their job (by giving them the ability to recognise when somebody plagiarizes my work), I want Turnitin to delete my work as soon as the check has been done. If Turnitin relies on third parties to do the plagiarism check, then I would need a limitative list of these parties and the assurance that the above two conditions will also count for them.