On June 9, 1970, Mass was being said in the tiny town of Stich, West Germany by a visiting Swiss priest. After the Consecration, the priest noticed a small red stain on the corporal next to the chalice. The stain grew to the size of a coin. When the priest raised the chalice, he noticed another red spot on the corporal where the chalice had been. The priest ran his hand over the bottom of the chalice because he thought the stains were caused by a leak in the chalice. However, there was no moisture on the bottom of the chalice.
After Mass, the visiting priest inspected the corporal and the long cloth that covered the altar. The parish priest also examined the cloths. Since all the cloths were clean, there was no explanation for the stains. So, the cloths were sent to the University of Zurich for analysis. No information was provided to the laboratory about the cloths.
The results of the analysis were that the red stain was human blood. Additionally, the director of the clinical laboratory who performed one analysis stated that it was his opinion that the blood was from a male experiencing a great deal of pain.
Then on July 14, 1970, the same Swiss priest was scheduled to say another Mass at the chapel in Stich. He verified that the altar, altar cloths, corporal, and chalice were completely clean and in good condition. Shortly after the Consecration red stains again appeared on the corporal. The priest signaled the sacristan to come to the altar to see the stains. After Mass, the priest invited the parishioners to come to the altar to see the stains. These cloths were sent to the District Hospital of Cercee. The results of the analysis done by the hospital indicated that the stains were human blood.
The sacristan and various members of the congregation provided sworn testimony about what they had seen on the cloths. According to all the testimony, one stain was the size of the priest’s large Host and the other stains were the size of the Hosts given to the congregation. A cross was clearly visible in the red stains.