{"id":3382,"date":"2002-02-05T15:30:45","date_gmt":"2002-02-05T20:30:45","guid":{"rendered":"https:\/\/antipolygraph.org\/blog\/?p=3382"},"modified":"2021-02-22T05:05:44","modified_gmt":"2021-02-22T10:05:44","slug":"de-klerk-accused-fails-second-polygraph-test","status":"publish","type":"post","link":"https:\/\/antipolygraph.org\/blog\/2002\/02\/05\/de-klerk-accused-fails-second-polygraph-test\/","title":{"rendered":"“De Klerk Accused Fails Second Polygraph Test”"},"content":{"rendered":"
\n\n\n

The South African Press Association reports<\/a> on the polygraph interrogation of Luyanda Mboniswa, who is accused in the strangulation and stabbing death of Marike de Klerk, the ex-wife of former South African president F.W. de Klerk. Excerpt:<\/p>\n\n\n\n

Cape Town<\/p>

The man accused of murdering former first lady Marike de Klerk, Luyanda Mboniswa, failed a second polygraph test within a week at Cape Town’s Pollsmoor Prison on Tuesday.<\/p>

This was confirmed by his lawyer, Mpumelelo Nyoka.<\/p>

“What this means is that the sensational chapter on lie-detecting is finally closed, but the one on truth-finding is enticingly open,” Nyoka said.<\/p>

Tuesday’s test was conducted by the vice president of the Polygraph Association of Southern Africa<\/a> (Pasa), David Johnstone, after a rival association criticised the first test.<\/p>

Nyoka said Johnstone had told him Mboniswa showed a “marked physical reaction” to questions on the killing, and on whether an accomplice was involved, and that this was not consistent with telling the truth.<\/p>

Johnstone had said this was a provisional result, and that the charts from the test would be sent to the United States for verification.<\/p>

“But I must hasten to say this doesn’t mean it (the result) will change,” said Nyoka.<\/p>

He said he would continue to represent Mboniswa, even though he himself did not know where the truth lay.<\/p>

“The lie detector test does not displace the foundation of criminal justice, which is that everyone has to be presumed innocent until found guilty,” he said.<\/p>

“I’m not a priest who says I will not act for someone, he’s lying, I am a lawyer and I must give him legal representation. As a lawyer I must be a fighter, and fight for my client…. I’ve got to ensure he gets a fair trial at the end of the day.<\/p>

“I cannot withdraw from the case just because of this. Otherwise we go back to the dark ages. The right of the accused is the right to a fair trial, and the presumption of innocence.”<\/p>

Last Thursday Mboniswa, 21, failed a polygraph test administered by Paul van Niekerk, a polygraphist from the Cape Town-based company Polygraph and Truth Verification Services. He apparently answered four questions untruthfully.<\/p>

Pasa spokesman Daan Bekker said, after the validity of the first test was queried, that Pasa was approached by a private investigator hired by Mboniswa’s lawyer to carry out another test.<\/p>

Van Niekerk said earlier he welcomed the repeat test, and that his results had already been verified by three other polygraph experts.<\/p>

“There is absolutely no doubt in my mind what the results (of the second test) will be. I just want to put this thing to rest,” Van Niekerk said.<\/p><\/blockquote>\n\n\n\n

Passing or failing a pseudoscientific polygraph “test” is evidence of nothing, and it is in the interest of anyone accused of a crime –innocent or guilty–not to submit to polygraphic interrogation.<\/p>\n\n\n<\/div>","protected":false},"excerpt":{"rendered":"

The South African Press Association reports on the polygraph interrogation of Luyanda Mboniswa, who is accused in the strangulation and stabbing death of Marike de Klerk, the ex-wife of former South African president F.W. de Klerk. Excerpt: Cape Town The man accused of murdering former first lady Marike de Klerk, Luyanda Mboniswa, failed a second …<\/p>\n","protected":false},"author":1,"featured_media":0,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[3],"tags":[286],"class_list":{"0":"post-3382","1":"post","2":"type-post","3":"status-publish","4":"format-standard","6":"category-polygraph","7":"tag-south-africa","8":"anons"},"_links":{"self":[{"href":"https:\/\/antipolygraph.org\/blog\/wp-json\/wp\/v2\/posts\/3382","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/antipolygraph.org\/blog\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/antipolygraph.org\/blog\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/antipolygraph.org\/blog\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/antipolygraph.org\/blog\/wp-json\/wp\/v2\/comments?post=3382"}],"version-history":[{"count":1,"href":"https:\/\/antipolygraph.org\/blog\/wp-json\/wp\/v2\/posts\/3382\/revisions"}],"predecessor-version":[{"id":3383,"href":"https:\/\/antipolygraph.org\/blog\/wp-json\/wp\/v2\/posts\/3382\/revisions\/3383"}],"wp:attachment":[{"href":"https:\/\/antipolygraph.org\/blog\/wp-json\/wp\/v2\/media?parent=3382"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/antipolygraph.org\/blog\/wp-json\/wp\/v2\/categories?post=3382"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/antipolygraph.org\/blog\/wp-json\/wp\/v2\/tags?post=3382"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}