Question juridique clé
Whether the prosecutor rightly issued a non-entry decision against B.___.
Solution extraite
Yes. The file contained no concrete indications of a punishable act; all relevant laboratory examinations were negative for active hepatitis C.
Motifs extraits
A non-entry decision is permissible only in clear cases of no criminal liability. Here, multiple PCR-based tests and medical reports consistently found no detectable HCV RNA, and there were no indications that the laboratories had manipulated results.