Police Fail "CALM"

A recent story published in the Lao Dong (Labour) newspaper in Hanoi, Vietnam raises questions about the education of the Vietnemese police. A death row inmate in solitary confinement is pregnant. The 39 year old Nguyen Thi Oanh was tested in September by a doctor and discovered she was 11 weeks pregnant. This is a first for a death-row prisoner in Vietnam. Police are investingating how it happened.
For those confused readers who are not familiar with CALM, it was a high school program Career and Life Management, now called Life Skills, which among other things taught about reproduction. This concept has seemed to baffle the police because Oanh's husband is serving time in another jail in another province at the time of conception.
This may be just this blogger's jaded view of the world, but I believe that the XY donor did not have to be her husband. Just a theory.
Oanh was sceduled to face a firing squad this year after losing an appeal on drug trafficking charges. She is requesting a pardon so that she can deliver the baby. The father has not yet been located, although the husband's location is known. So who can be the father? Try checking the guards on duty 11 weeks prior to the September exam. My hunch is you can narrow it down that way.