What happened to DHS HSAM Debriefing Guide?

The DHS HSAM used to have a Debriefing Guide at Appendix AA.  DHS revised the HSAM in 2023, and now it is gone.  But it is still mentioned within the HSAM.  Does anyone have the link to the current DHS Debriefing Guide?  Link to HSAM https://www.dhs.gov/homeland-security-acquisition-manual