Cycles of the uterus mucous membranes and estimation of time of death

In a case where a 27-year-old prostitute was found stabbed to death, histological examination of the uterus mucous membranes was performed to estimate the time of death after a long postmortem interval. The time of menstruation was obtained from a witness statement. Assuming a regular cyclus, the histology of the uterus tissue indicated an early stage of menstruation suggesting that death occurred shortly after the women disappeared.