IPOH: Traces of semen were not detected on the clothing, mop or mattress sent for analysis to the Chemistry Department, the High Court here heard. The department’s DNA Forensic Division director Nor Aidora Saedon said this when testifying in the rape trial of Tronoh assemblyman Paul Yong yesterday. She said an acid phosphatase( AP) test was carried out to determine if there was any presence of semen on the exhibits.“ The AP test was an authentic test carried out to know for sure if stains on the