Secondary or Tertiary Transfer Semen DNA Stains?

Presenting section:
Criminalistics
Pun, Ka-Man, Bellinzona SWITZERLAND; Grimoldi, Giuliana, Bellinzona SWITZERLAND; Foglia, Gianfranco, Giubiasco SWITZERLAND; Monico, Ilaria, Bellinzona SWITZERLAND; Scossa Baggi, Emilio, Bellinzona SWITZERLAND