After shooting of the first series of "Secrecy of the Investigation", it was revealed that the actress was pregnant and about to give birth. After considering and weighing this situation, the filmmakers decided not to hide Kovalchuk's pregnancy; and script writer Elena Topilsky urgently adapted the script as it concerned the private life of its heroine, Masha Shvetsova's inspector, to include this development. On 26 October 2000, the actress gave birth to Ilchenko's and her daughter, Zlata (meaning "Gold" in Russian); and the scene of sorts and her breast-feeding her baby were subsequently included in the teleserial.