A Dutch court on Friday ruled that DNA tests can be performed on the late director of a shuttered Netherlands fertility clinic as part of a collective of paternity cases.
The Rotterdam court "ruled that DNA samples of a recently deceased doctor may be taken from sequestered goods to establish a DNA profile".
But it added: "The results of this examination must remain sealed until another judge rules whether or not the results can be compared with the DNA of a group of children" born via IVF.
As it happens, there's a fertility doctor in IN who's also been accused of improperly using his own sperm to impregnate patients.
At a court hearing last month, a lawyer for the 23 parents and children said that the suspected cases included a client who had brown eyes when the sperm donor was supposedly blue-eyed and a male client who physically resembled the doctor.
The children and their families will have to start new court proceedings "to provide more proof", it said.
The court's ruling is part of continuing legal action from more than 20 people who believe Karbaat may be their biological father - having donated his own sperm at his clinic.
Last week, DNA submitted by Karbaat's son - which can accurately be used to test paternity - indicated that 18 people born through donations at the clinic are probably the late doctor's.
Police seized Karbaat's personal belongings, including a toothbrush, from his home on May 2nd.
His family's lawyer has fiercely fought against such tests, saying their privacy should be respected.
Karbaat's clinic was shut down in Rotterdam in 2009 after numerous complaints and two inspections by public health authorities.
But the scandal has widened in the Netherlands.
Another round of tests also showed that three of the 19 people had been born after IVF treatment at a second fertility clinic, at the Zuider hospital in Rotterdam, where Karbaat was the medical director for 15 years, the daily AD newspaper said Saturday.
He left the clinic at Zuider hospital, now called the Maasstad, in 1979 after a dispute, and later opened his fertility clinic where the other irregularities were alleged to have occurred.