Can information I provide to help identify remains through a Black Notice be used against me in a criminal investigation?

Potentially, yes. Information submitted for humanitarian identification purposes is not automatically privileged. If the remains are connected to a suspected crime, forensic data you provide — including your DNA profile — may be retained by national law enforcement databases and cross-referenced against criminal evidence. Before submitting comparison materials, obtain legal advice on the specific data protection and criminal procedure laws of the country holding the remains. In some jurisdictions, legal instruments exist to limit secondary use of voluntarily submitted identification data, but these protections must be explicitly invoked before submission.