Wonke umlawuli ohloniphayo okhupha uchungechunge lomculi okanye intlonelo yeentlola, uzama ukubandakanya ekudaleni kwakhe ummandla nge polygraph okanye ubuncinane ukukhankanywa kwalo. Ngako oko, kubonakala ngathi ukutshekisha kwi-polygraph akunakwenzeka, kwaye kunokwenzeka yini ukukhohlisa umtshina wamanga-isistim esilunxwemeni esinezixhobo ezichanekileyo ezilinganisa zonke iimpendulo zomzimba wethu? Kuvela ukuba le ndlela ayilungelelwanga njengoko sinikwe kwiifilimu.
Yintoni i-polygraph?
Iprototype ye-polygraph yabonakala nge-1920, kodwa eli gama likhankanywe okokuqala ngo-1804. UJohn Hawkins wabiza isixhobo, esenza ukuba kwenzeke iikopi ezichanekileyo zeetekisi ezibhalwe ngesandla. Kwaye ekugqibeleni eli gama lisetyenziswe ukubonisa umtshina wamanga. Izixhobo zokuqala zazixhotywe ngeenzwa kuphela ezirekhodiweyo ukuphefumla kunye noxinzelelo. Kodwa i-polygraphs yanamhlanje ingarekhoda ukuya kuma-parameter engama-50. Ukongezelela kwizikhombisi ezidweliswe, oku kubandakanya ukutshintsha kwintsholongwane kunye nokuvakala kokuphefumla, idatha kwi-palpitation, palpitation, ubuso bombuso, iimpendulo zepupillary, ukutshatyalaliswa kwamanzi, kwaye ngezinye izikhathi ubhalise umsebenzi wombane wengqondo. Akumangalisi ukuba isixhobo sibonakala sisigqibo sokugqibela ekufuneni inyaniso. Emva kwakho konke, kukholwa ukuba umntu ulala, ilizwi lakhe liya kutshintsha, izandla zakhe ziya kuthukuma, ubungakanani bomfundi bakhe buya kutshintsha, ukushisa kwesikhumba esondele kwamehlo akhe okanye i-pulse iya kwanda, kwaye i-polygraph inento yonke efunekayo yokulungisa olu tshintsho.
Ngaba kunokwenzeka ukukhohlisa umtshina wamanga?
Abaninzi bayazi kakuhle kakuhle ukuba baxoke njani ukuze bakholwe. Kufuneka uqale ukholelwe kubuxoki bakho, ukuba oko kwenzeka, kuya kuba nzima ukuyiqonda. Kodwa ngaba kunokwenzeka ukukhohlisa i-polygraph (umtshina wokuxoka) ngale ndlela? Izazinzulu zaseMerika ezivela kwiYunivesithi yaseNorthwestern ziye zabanomdla kulo mbandela, zaza zakhokelela izifundo ezininzi, iziphumo ezibhekiselele kwinto enzima kwi-polygraph. Ngokuqinisekileyo, befuna kuphela ukuphendula umbuzo ukuba ngaba kungenzeka ukuba bakhohlise umtshina wamanga, kwaye abazange bahlose ukupapasha le ndlela, kodwa bengenzi ngokuzikhethela.
Ukwahlula izifundo zibe ngamaqela amabini, bacebisa ukuba wonke umntu athethe amanga. Abathathi-nxaxheba beqela lokuqala bavavanywa ngokukhawuleza, kwaye okwesibini - abanalo ixesha elincinane lokulungiselela. Abathathi-nxaxheba kwiqela lesibini bakwazi ukugqithisa umtshina wamanga, baphendule imibuzo ngendlela efanele - ngokukhawuleza nangokucacileyo. Ngenxa yesifundo, abaphandi bancomele ukuba amapolisa aphandwe ngokukhawuleza emva kokuvalelwa, ngaphandle kokunika ixesha lolwaphulo-mthetho ukulungiselela lo mlando. Nangona, mhlawumbi, amagosa okuthotyelwa komthetho sele sele eyazi le mibala.
Yaye into emangalisayo kukuba ukuvavanya nge-polygraph, ngokubanzi, akusiyo inzululwazi ngqo. Ngokubanzi, oku akunjalo kakhulu isayensi njengobungcali, kuba kuyimfuneko nje kuphela ukulungisa iziphumo, kodwa nokuzichazela ngokuchanekileyo. Kwaye lo msebenzi awulula kwaye ufuna i-qualification ephezulu yeengcali.