Fructose can be used as an evidence of rape which may be found in vaginal region of Female.
but How fructose can enter female reproductive system, even when a person is using condoms ( contrapceptive barreir) while doing sexual act.
Even after using Condoms , which are not 100% sucessful everytime . A part of semen may enter into Vaginal opening . This , can be used to detect the Rapist by DNA Fingerprinting.