The 33-year-old Indian, who appeared in court with three other defendants, said he used to charge Rs 12,000 (1,000 dirhams) from those who wanted to replace their blood specimen with that of a healthy person.
He used to withdraw an extra quantity of blood from disease-free applicants and place it in test tubes tagged with names of the patients who had paid him, the reports said.
After sending the blood samples to the lab and receiving the results based on the disease-free specimen, he would forward them to the administration department, which issues a fitness certificate to be used for residence visa processing.
A Pakistani defendant, suffering from Hepatitis B, has also admitted to paying the employee as he was afraid that he would not get his residency visa.
A middleman demanded Rs 41,996 (3,500 dirhams) and took him to a typing centre where he got his application printed and registered, he said. He used the certificate to get his residence visa renewed.
The two middlemen have also admitted their role in bribing the government employee. The first was the one who used to meet applicants and collect their documents and money. The other, who worked in a cafeteria near the clinic, delivered the applications to the employee against a payment of Rs 6,000 (500 dirhams).