Rapid Action Battalion (Rab) members have seized the passports of Regent Group Chairman Md Shahed alias Shahed Karim and his father.
In a drive at the Uttara Branch of Regent Hospital and Regent Group head office on Saturday, they also collected some important evidence, including a computer hard disk.
The elite force said the drive was conducted for the sake of investigation into the scam.
Earlier, a mobile court sealed off Regent Group head office and its two hospitals in Uttara and Mirpur following a drive by elite force Rab.
Rab also filed a case against 17 persons, including Shahed, on charge of Covid-19 certificate forgery and illegally taking money from patients.
Earlier on Thursday, Bangladesh Bank (BB) instructed all the banks to freeze Shahed’s accounts for the next 30 days.
Meanwhile, Rab filed a case against Shahed for various irregularities, fraudulence, breach of contract with the government and giving false reports of corona test.
Police also imposed a restriction on his departure of the country in the interest of proper investigation of the case.
Police on Thursday sent a letter to the immigration department in this regard.
Home Minister Asaduzzaman Khan on Friday said Regent Group Chairman Md Shahed alias Shahed Karim will be brought under the law no matter how powerful he is.