State Ex Rel. Hausner v. Blackman

648 P.2d 249, 7 Kan. App. 2d 693
CourtCourt of Appeals of Kansas
DecidedSeptember 17, 1982
Docket52,771
StatusPublished
Cited by15 cases

This text of 648 P.2d 249 (State Ex Rel. Hausner v. Blackman) is published on Counsel Stack Legal Research, covering Court of Appeals of Kansas primary law. Counsel Stack provides free access to over 12 million legal documents including statutes, case law, regulations, and constitutions.

Bluebook
State Ex Rel. Hausner v. Blackman, 648 P.2d 249, 7 Kan. App. 2d 693 (kanctapp 1982).

Opinion

Rees, J.:

This is a paternity action. A jury found defendant to be the father of the child. Defendant appeals.

The initial issue on appeal is whether evidence concerning paternity exclusion blood testing was erroneously admitted to prove the single question in this case, that is, whether the defendant is the biological father of the child.

“In paternity exclusion testing, the presence or absence of certain genetically controlled factors [‘markers’] in the blood of the mother, child(ren), and alleged father(s) is determined. The patterns obtained are evaluated utilizing well-defined laws of inheritance to establish whether or not the genetic makeup of the alleged father would preclude his being the true father of the child in question.

“The term exclusion means it is genetically impossible for the alleged father to be the true biological father. Exclusions are of two general categories: direct exclusions and indirect exclusions. In direct exclusions, the child possesses a factor not present in either the mother or the alleged father. Since the factor was inherited from one of the child’s parents and it was not inherited from the mother, it had to have been inherited from the father. But because the alleged father does not have the factor, another man must be the child’s father. In indirect exclusions, *694 the child does not possess a factor which the alleged father must contribute to his children.” Stroud, Bundrant and Galindo, Paternity Testing: A Current Approach, 16 Trial 46 (Sept. 1980).

The challenged evidence is the testimony of plaintiff’s expert witness, Malcolm L. Beck, a serologist who took and analyzed samples of blood of the child, his mother and defendant. The entire material testimony of the witness was as follows:

“Q. . . . Mr. Beck, tell me what you do, generally, or what happens generally after a blood sample is taken.

“A. For the purpose of paternity testing?

“Q. Yes, sir.

“A. I take blood samples from each of the individuals. These samples are then tested for ‘S’ series of inheritable factors within a series of blood group systems. I then analyze the results to see whether these are consistent or not with paternity.

“Q. And did you do that, sir . . . in this instance ....

“A. Yes, I did.

“Q. What examination did you make of the test results?

“A. I performed the tests myself, I analyzed the results and the conclusion I came to was that it was not possible to establish non-paternity in this case.

“Q. Now, is it possible with the kind of test that you did to establish paternity to a reasonable medical [certainty]?

“A. With this particular series of tests, this would be limited.

“Q. And what is the percentage or percentile or whatever on the type of test that you performed, Mr. Beck?

“A. In this particular series of tests I would anticipate an exclusion rate in the order of about seventy percent.

“Q. That is seven out of ten men you could exclude as possible fathers of this child involved?

“A. Given ten men falsely accused of a paternity, I could exonerate about seven of them.

“Q. Now, at the time that [the defendant and the mother] and the attorneys were there, did you make available or explain some further kind of tests that were available?

“A. It is always my practice to point out that with this particular series of tests we are limited to the seventy percent exclusion rate and I point out that if we can’t arrive at a decision then, I would recommend that further testing be done to raise the level of exclusion in excess of ninety percent. This is a recommendation of the American Medical Association, American Bar Association Joint Report on Paternity Testing.

“Q. And what kind of test is this that is available to raise the exclusion rate to . . . ninety percent?

“A. There is another series of inheritable factors that can be tested for. These are red blood enzymes and a series of serum proteins.

“Q. Were you referring to a Human Lucocyte [Antigen] Test?

“A. No, I wasn’t.

*695 “Q. You have one that is more scientific than the H.L.A. test?

“A. Not more scientific, as good as H.L.A. testing.

“Q. Basically, all you were able to determine from your tests . . . was that it was not possible to establish that [the defendant] was not the father?

“A. Indeed.

“Q. You were able to establish that [the defendant] might be the father but you could not exclude him as the father, is that what you are saying?

“A. I was able to establish that I could not exclude him.”

“One of the most prevalent confusions in paternity testing is the difference between the meanings of the terms ‘probability of exclusion’ and ‘likelihood of paternity.’ Probability of exclusion is the probability that the tests employed will exclude a falsely accused man. For example, if the probability of exclusion with the tests employed is 95 percent, of 100 non-fathers, 95 will be excluded and five will not be excluded. If the probability of exclusion with the tests employed is 95 percent and no exclusion is obtained, either the alleged father is the true father or he is one of the five out of 100 non-fathers that the tests would not exclude. Another way of stating this is that there is a five percent chance that the alleged father is not the true father, but the tests used would not exclude him.

“This does not mean that there is a 95 percent chance that the alleged father is the true father. Of course, the higher the probability of exclusion, the greater is the likelihood of paternity for a non-excluded man. [For example, if 90 percent probability of exclusion tests are administered to 100 non-fathers and the biological father, 90 non-fathers should be excluded and the biological father will be one of the 11 non-excluded test subjects. If 95 percent probability of exclusion tests are administered to 100 non-fathers and the biological father, 95 non-fathers should be excluded and the true father will be one of the six non-excluded subjects.] But there is no direct relationship between the probability of exclusion and the likelihood of paternity. Likelihood of paternity cannot be extrapolated from the probability of exclusion.” 16 Trial at 47. (Emphasis added.)

Understanding of the last two quoted sentences may be aided by restatement of one example, expression of a second example, and additional comments. It does not follow from an alleged father’s failure to be excluded by 90 percent probability of exclusion tests that there is a 90 percent chance he is the biological father. If man A is not excluded by 90 percent probability of exclusion tests and man B is not excluded by 95 percent probability of exclusion tests, it does not follow that man B is twice as likely to be the biological father.

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Bluebook (online)
648 P.2d 249, 7 Kan. App. 2d 693, Counsel Stack Legal Research, https://law.counselstack.com/opinion/state-ex-rel-hausner-v-blackman-kanctapp-1982.