PW-1, father of deceased, preferred Ex.P1, complaint, to PW-8, Sub-Inspector of Police, Puzhal Police Station. PW-8 registered a case in Crime No.199 of 2007 on the file of respondent u/s.174 Cr.P.C. and forwarded the same to Assistant Commissioner of Police. Printed First Information Report is Ex.P4. PW-9, Revenue Divisional Officer, on receipt of complaint, visited the place of occurrence on 16.04.2007 and examined Pws.1, 3, 4, 5, 6 and others and recorded their statements. PW-9, on 18.06.2007, filed Ex.P5, inquest report, informing that there was demand of dowry by appellant/accused. PW-10, Head Constable, took the body of the deceased to Stanley Government Hospital towards conduct of postmortem and on completion thereof, he handed over the body of deceased to PW-1, her father. Ex.P2 is the Postmortem Certificate. PW-11, Sub-Inspector of Police, Puzhal Police Station, took up further investigation in the case. PW-11 prepared Ex.P3, Observation Mahazar and Ex.P6, Rough Sketch in the presence of PW-6 and another. PW-11 examined PWs.1, 3, 4, 5, 6 and another and recorded their statements. PW-11, on receipt of report from the Revenue Divisional Officer on 29.06.2007 informing that the deceased had committed suicide owing to demand of dowry by appellant/accused, altered the First Information Report to reflect offences u/s.498-A and 304-B IPC. The Alteration Report is Ex.P7. PW-11 arrested the accused on 02.07.2007 and sent him to judicial custody. PW-11 examined PW2, Doctor, who conducted postmortem and recorded his statement. PW-11 examined PW-10, Head Constable and recorded his statement. Ex.P8 is the Viscera Report. Ex.P5 is the inquest report. On completion of investigation and filing of charge sheet informing commission of offences u/s.498-A, 306 and 304 IPC, the case, upon committal, was tried in S.C.No.209 of 2007 on the file of learned Additional District and Sessions Judge, Fast Track Court III, Thiruvallur.