{"id":5708,"date":"2025-05-03T18:31:41","date_gmt":"2025-05-03T16:31:41","guid":{"rendered":"https:\/\/elpoligrafo.es\/?p=5708"},"modified":"2025-05-06T12:22:57","modified_gmt":"2025-05-06T10:22:57","slug":"case-1-doubt-in-the-home-infidelity","status":"publish","type":"post","link":"https:\/\/elpoligrafo.es\/en\/case-1-doubt-in-the-home-infidelity\/","title":{"rendered":"Doubt in the home (Infidelity)"},"content":{"rendered":"<div id=\"ez-toc-container\" class=\"ez-toc-v2_0_75 counter-hierarchy ez-toc-counter ez-toc-light-blue ez-toc-container-direction\">\n<div class=\"ez-toc-title-container\">\n<p class=\"ez-toc-title\" style=\"cursor:inherit\">Table of Contents<\/p>\n<span class=\"ez-toc-title-toggle\"><a href=\"#\" class=\"ez-toc-pull-right ez-toc-btn ez-toc-btn-xs ez-toc-btn-default ez-toc-toggle\" aria-label=\"Toggle Table of Contents\"><span class=\"ez-toc-js-icon-con\"><span class=\"\"><span class=\"eztoc-hide\" style=\"display:none;\">Toggle<\/span><span class=\"ez-toc-icon-toggle-span\"><svg style=\"fill: #999;color:#999\" xmlns=\"http:\/\/www.w3.org\/2000\/svg\" class=\"list-377408\" width=\"20px\" height=\"20px\" viewbox=\"0 0 24 24\" fill=\"none\"><path d=\"M6 6H4v2h2V6zm14 0H8v2h12V6zM4 11h2v2H4v-2zm16 0H8v2h12v-2zM4 16h2v2H4v-2zm16 0H8v2h12v-2z\" fill=\"currentColor\"><\/path><\/svg><svg style=\"fill: #999;color:#999\" class=\"arrow-unsorted-368013\" xmlns=\"http:\/\/www.w3.org\/2000\/svg\" width=\"10px\" height=\"10px\" viewbox=\"0 0 24 24\" version=\"1.2\" baseprofile=\"tiny\"><path d=\"M18.2 9.3l-6.2-6.3-6.2 6.3c-.2.2-.3.4-.3.7s.1.5.3.7c.2.2.4.3.7.3h11c.3 0 .5-.1.7-.3.2-.2.3-.5.3-.7s-.1-.5-.3-.7zM5.8 14.7l6.2 6.3 6.2-6.3c.2-.2.3-.5.3-.7s-.1-.5-.3-.7c-.2-.2-.4-.3-.7-.3h-11c-.3 0-.5.1-.7.3-.2.2-.3.5-.3.7s.1.5.3.7z\"\/><\/svg><\/span><\/span><\/span><\/a><\/span><\/div>\n<nav><ul class='ez-toc-list ez-toc-list-level-1' ><li class='ez-toc-page-1 ez-toc-heading-level-2'><a class=\"ez-toc-link ez-toc-heading-1\" href=\"https:\/\/elpoligrafo.es\/en\/case-1-doubt-in-the-home-infidelity\/#Introduccion\" >Introduction<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-2'><a class=\"ez-toc-link ez-toc-heading-2\" href=\"https:\/\/elpoligrafo.es\/en\/case-1-doubt-in-the-home-infidelity\/#Primera_toma_de_contacto_con_el_caso_una_entrevista\" >First contact with the case: an interview<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-2'><a class=\"ez-toc-link ez-toc-heading-3\" href=\"https:\/\/elpoligrafo.es\/en\/case-1-doubt-in-the-home-infidelity\/#Diseno_del_cuestionario_claves_y_control\" >Questionnaire design: keys and control<\/a><ul class='ez-toc-list-level-3' ><li class='ez-toc-heading-level-3'><a class=\"ez-toc-link ez-toc-heading-4\" href=\"https:\/\/elpoligrafo.es\/en\/case-1-doubt-in-the-home-infidelity\/#Preguntas_de_control\" >Control questions<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-3'><a class=\"ez-toc-link ez-toc-heading-5\" href=\"https:\/\/elpoligrafo.es\/en\/case-1-doubt-in-the-home-infidelity\/#Preguntas_clave\" >Key questions<\/a><\/li><\/ul><\/li><li class='ez-toc-page-1 ez-toc-heading-level-2'><a class=\"ez-toc-link ez-toc-heading-6\" href=\"https:\/\/elpoligrafo.es\/en\/case-1-doubt-in-the-home-infidelity\/#Instalacion_del_poligrafo_y_calibracion\" >Polygraph installation and calibration<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-2'><a class=\"ez-toc-link ez-toc-heading-7\" href=\"https:\/\/elpoligrafo.es\/en\/case-1-doubt-in-the-home-infidelity\/#La_sesion_respuestas_entre_la_tension_y_la_certeza\" >The session: responses between tension and certainty<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-2'><a class=\"ez-toc-link ez-toc-heading-8\" href=\"https:\/\/elpoligrafo.es\/en\/case-1-doubt-in-the-home-infidelity\/#El_resultado_la_verdad_sale_a_la_luz\" >The result: the truth comes out<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-2'><a class=\"ez-toc-link ez-toc-heading-9\" href=\"https:\/\/elpoligrafo.es\/en\/case-1-doubt-in-the-home-infidelity\/#Epilogo\" >Epilogue<\/a><\/li><\/ul><\/nav><\/div>\n<div class=\"wpb-content-wrapper\"><div class=\"vc_row wpb_row vc_row-fluid\"><div class=\"wpb_column vc_column_container vc_col-sm-12\"><div class=\"vc_column-inner\"><div class=\"wpb_wrapper\">\n\t<div class=\"wpb_text_column wpb_content_element\" >\n\t\t<div class=\"wpb_wrapper\">\n\t\t\t<h2><span class=\"ez-toc-section\" id=\"Introduccion\"><\/span>Introduction<span class=\"ez-toc-section-end\"><\/span><\/h2>\n<p>Antonio and Clara had been married for twelve years. A quiet life, two children, a house in the suburbs, and a routine marked by the absences of Antonio, a long-distance lorry driver. Until a small gesture ignited a great doubt.<\/p>\n<p>During one of those weeks alone, Clara allowed Lucas, a friend of theirs, to stay over after a long conversation. Nothing happened, according to her. But Antonio couldn't help thinking that something else had happened. Doubt settled in like a crack in the trust.<\/p>\n\n\t\t<\/div>\n\t<\/div>\n<\/div><\/div><\/div><\/div><div class=\"vc_row wpb_row vc_row-fluid\"><div class=\"wpb_column vc_column_container vc_col-sm-12\"><div class=\"vc_column-inner\"><div class=\"wpb_wrapper\">\n\t<div class=\"wpb_text_column wpb_content_element\" >\n\t\t<div class=\"wpb_wrapper\">\n\t\t\t<h2><span class=\"ez-toc-section\" id=\"Primera_toma_de_contacto_con_el_caso_una_entrevista\"><\/span>First contact with the case: an interview<span class=\"ez-toc-section-end\"><\/span><\/h2>\n<p>They decided to come to me for a polygraph test. First I interviewed Antonio, who, although visibly hurt, insisted that he only wanted to know the truth. Then I spoke to Clara: she was calm, self-assured, and agreed to take the test without hesitation. For both of them, this step was decisive.<\/p>\n<p>This first contact makes it possible to assess the disposition of each party, the emotional context, and to rule out external pressures or previous manipulation.<\/p>\n\n\t\t<\/div>\n\t<\/div>\n<\/div><\/div><\/div><\/div><div class=\"vc_row wpb_row vc_row-fluid\"><div class=\"wpb_column vc_column_container vc_col-sm-12\"><div class=\"vc_column-inner\"><div class=\"wpb_wrapper\">\n\t<div  class=\"wpb_single_image wpb_content_element vc_align_center  vc_custom_1746290879482\">\n\t\t\n\t\t<figure class=\"wpb_wrapper vc_figure\">\n\t\t\t<div class=\"vc_single_image-wrapper   vc_box_border_grey\"><img decoding=\"async\" width=\"800\" height=\"420\" src=\"https:\/\/elpoligrafo.es\/wp-content\/uploads\/2025\/05\/elpoligrafo-H1-a.jpg\" class=\"vc_single_image-img attachment-full\" alt=\"\" title=\"elpoligrafo-H1-a\" srcset=\"https:\/\/elpoligrafo.es\/wp-content\/uploads\/2025\/05\/elpoligrafo-H1-a.jpg 800w, https:\/\/elpoligrafo.es\/wp-content\/uploads\/2025\/05\/elpoligrafo-H1-a-300x158.jpg 300w, https:\/\/elpoligrafo.es\/wp-content\/uploads\/2025\/05\/elpoligrafo-H1-a-768x403.jpg 768w, https:\/\/elpoligrafo.es\/wp-content\/uploads\/2025\/05\/elpoligrafo-H1-a-18x9.jpg 18w\" sizes=\"(max-width: 800px) 100vw, 800px\"  data-dt-location=\"https:\/\/elpoligrafo.es\/en\/case-1-doubt-in-the-home-infidelity\/elpoligrafo-h1-a\/\" \/><\/div>\n\t\t<\/figure>\n\t<\/div>\n<\/div><\/div><\/div><\/div><div class=\"vc_row wpb_row vc_row-fluid\"><div class=\"wpb_column vc_column_container vc_col-sm-12\"><div class=\"vc_column-inner\"><div class=\"wpb_wrapper\">\n\t<div class=\"wpb_text_column wpb_content_element\" >\n\t\t<div class=\"wpb_wrapper\">\n\t\t\t<h2><span class=\"ez-toc-section\" id=\"Diseno_del_cuestionario_claves_y_control\"><\/span>Questionnaire design: keys and control<span class=\"ez-toc-section-end\"><\/span><\/h2>\n<p>Once I understood the emotional background, I proceeded to design the set of questions that would form the test. The protocol calls for alternating\u00a0<strong>key questions<\/strong>\u00a0with\u00a0<strong>control questions<\/strong>The aim is to establish an emotional baseline and detect physiological variations associated with truth or lies.<\/p>\n\n\t\t<\/div>\n\t<\/div>\n<\/div><\/div><\/div><\/div><div class=\"vc_row wpb_row vc_row-fluid\"><div class=\"wpb_column vc_column_container vc_col-sm-12\"><div class=\"vc_column-inner\"><div class=\"wpb_wrapper\">\n\t<div class=\"wpb_text_column wpb_content_element\" >\n\t\t<div class=\"wpb_wrapper\">\n\t\t\t<h3><span class=\"ez-toc-section\" id=\"Preguntas_de_control\"><\/span>Control questions<span class=\"ez-toc-section-end\"><\/span><\/h3>\n<ul>\n<li>Have you ever lied to your partner in the past?<\/li>\n<li>Have you ever had romantic thoughts for someone outside your relationship?<\/li>\n<li>Have you kept anything important from Antonio?<\/li>\n<li>Are you absolutely sure that you have never been unfaithful?<\/li>\n<\/ul>\n<p>These questions serve to measure emotional reactivity in uncomfortable situations, and compare it with reactions to key questions.<\/p>\n<h3><span class=\"ez-toc-section\" id=\"Preguntas_clave\"><\/span><span id=\"Preguntas_clave\" class=\"ez-toc-section\"><\/span>Key questions<span class=\"ez-toc-section-end\"><\/span><\/h3>\n<ul>\n<li>Did any inappropriate physical contact occur between you and Lucas?<\/li>\n<li>Were there any romantic or sexual advances between the two?<\/li>\n<li>Do you feel guilty about anything related to the night Lucas slept at your house?<\/li>\n<li>Did you hide anything that happened that day from Antonio?<\/li>\n<\/ul>\n<p>Each question is asked in different ways in different rounds to ensure consistency in physiological responses.<\/p>\n\n\t\t<\/div>\n\t<\/div>\n<\/div><\/div><\/div><\/div><div class=\"vc_row wpb_row vc_row-fluid\"><div class=\"wpb_column vc_column_container vc_col-sm-12\"><div class=\"vc_column-inner\"><div class=\"wpb_wrapper\">\n\t<div class=\"wpb_text_column wpb_content_element\" >\n\t\t<div class=\"wpb_wrapper\">\n\t\t\t<h2><span class=\"ez-toc-section\" id=\"Instalacion_del_poligrafo_y_calibracion\"><\/span>Polygraph installation and calibration<span class=\"ez-toc-section-end\"><\/span><\/h2>\n<p>Clara was the first to undergo the test. Sensors were attached to her torso to record her breathing, a blood pressure cuff on her arm and electrodes on her fingers to measure the galvanic response of her skin. All this makes it possible to observe in real time how her body responds to each verbal stimulus.<\/p>\n<p>Before starting the test, we carried out a round of\u00a0<strong>neutral questions<\/strong>\u00a0to calibrate the machine:<\/p>\n<ul>\n<li>Is your name Clara?<\/li>\n<li>Is today Tuesday?<\/li>\n<li>Are you sitting down?<\/li>\n<\/ul>\n<p>These questions help to establish the normal physiological patterns of the person being assessed.<\/p>\n\n\t\t<\/div>\n\t<\/div>\n<\/div><\/div><\/div><\/div><div class=\"vc_row wpb_row vc_row-fluid\"><div class=\"wpb_column vc_column_container vc_col-sm-12\"><div class=\"vc_column-inner\"><div class=\"wpb_wrapper\">\n\t<div  class=\"wpb_single_image wpb_content_element vc_align_center  vc_custom_1746291065573\">\n\t\t\n\t\t<figure class=\"wpb_wrapper vc_figure\">\n\t\t\t<div class=\"vc_single_image-wrapper   vc_box_border_grey\"><img decoding=\"async\" width=\"800\" height=\"420\" src=\"https:\/\/elpoligrafo.es\/wp-content\/uploads\/2025\/05\/elpoligrafo-H1-b.jpg\" class=\"vc_single_image-img attachment-full\" alt=\"\" title=\"elpoligrafo-H1-b\" srcset=\"https:\/\/elpoligrafo.es\/wp-content\/uploads\/2025\/05\/elpoligrafo-H1-b.jpg 800w, https:\/\/elpoligrafo.es\/wp-content\/uploads\/2025\/05\/elpoligrafo-H1-b-300x158.jpg 300w, https:\/\/elpoligrafo.es\/wp-content\/uploads\/2025\/05\/elpoligrafo-H1-b-768x403.jpg 768w, https:\/\/elpoligrafo.es\/wp-content\/uploads\/2025\/05\/elpoligrafo-H1-b-18x9.jpg 18w\" sizes=\"(max-width: 800px) 100vw, 800px\"  data-dt-location=\"https:\/\/elpoligrafo.es\/en\/case-1-doubt-in-the-home-infidelity\/elpoligrafo-h1-b\/\" \/><\/div>\n\t\t<\/figure>\n\t<\/div>\n<\/div><\/div><\/div><\/div><div class=\"vc_row wpb_row vc_row-fluid\"><div class=\"wpb_column vc_column_container vc_col-sm-12\"><div class=\"vc_column-inner\"><div class=\"wpb_wrapper\">\n\t<div class=\"wpb_text_column wpb_content_element\" >\n\t\t<div class=\"wpb_wrapper\">\n\t\t\t<h2><span class=\"ez-toc-section\" id=\"La_sesion_respuestas_entre_la_tension_y_la_certeza\"><\/span>The session: responses between tension and certainty<span class=\"ez-toc-section-end\"><\/span><\/h2>\n<p>The test was conducted in several rounds, interspersing the key questions with the control questions. Clara maintained a stable pattern throughout. Her heart rate, blood pressure, sweating and respiratory rate showed no signs of alteration to any of the key questions.<\/p>\n<p>Interestingly, their most tense responses were recorded in one of the control questions: \"Have you ever lied to your partner? Common and expected. However, on the questions that really mattered, related to Lucas, his body did not lie.<\/p>\n\n\t\t<\/div>\n\t<\/div>\n<\/div><\/div><\/div><\/div><div class=\"vc_row wpb_row vc_row-fluid\"><div class=\"wpb_column vc_column_container vc_col-sm-12\"><div class=\"vc_column-inner\"><div class=\"wpb_wrapper\">\n\t<div class=\"wpb_text_column wpb_content_element\" >\n\t\t<div class=\"wpb_wrapper\">\n\t\t\t<h2><span class=\"ez-toc-section\" id=\"El_resultado_la_verdad_sale_a_la_luz\"><\/span>The result: the truth comes out<span class=\"ez-toc-section-end\"><\/span><\/h2>\n<p>The final analysis was conclusive: there was no evidence of cheating. Clara had not had any kind of inappropriate relationship with Lucas. The night he slept at her house was indeed innocent.<\/p>\n<p>When I presented the results to Antonio, he burst into tears. Not out of sadness, but out of relief. Clara, also moved, took his hand. They had come looking for certainties, and they had found them. But the most important thing of all was not the result, but what came after: the mutual commitment to work on trust and to heal what doubt had eroded.<\/p>\n\n\t\t<\/div>\n\t<\/div>\n<\/div><\/div><\/div><\/div><div class=\"vc_row wpb_row vc_row-fluid\"><div class=\"wpb_column vc_column_container vc_col-sm-12\"><div class=\"vc_column-inner\"><div class=\"wpb_wrapper\">\n\t<div class=\"wpb_text_column wpb_content_element\" >\n\t\t<div class=\"wpb_wrapper\">\n\t\t\t<h2><span class=\"ez-toc-section\" id=\"Epilogo\"><\/span>Epilogue<span class=\"ez-toc-section-end\"><\/span><\/h2>\n<p>This case reminds us that sometimes the truth doesn't hurt... what hurts is suspicion. And when it is done well,\u00a0<a class=\"wpil_keyword_link\" title=\"the polygraph\" href=\"https:\/\/elpoligrafo.es\/en\/\" data-wpil-keyword-link=\"linked\">the polygraph<\/a>\u00a0can be more than a tool for detecting lies: it can be a gateway to rebuilding broken ties.<\/p>\n\n\t\t<\/div>\n\t<\/div>\n<\/div><\/div><\/div><\/div>\n<\/div>","protected":false},"excerpt":{"rendered":"<p>A seemingly stable marriage is shaken by a suspicion of infidelity when Clara allows a friend to spend the night at home during her husband's absence. Tension mounts until they decide to go to the polygraph to discover the truth. Tension builds until they decide to take a polygraph to uncover the truth. Can a test restore broken trust?<\/p>","protected":false},"author":1,"featured_media":5712,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"_joinchat":[],"footnotes":""},"categories":[32],"tags":[],"class_list":["post-5708","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-relatos","category-32","description-off"],"_links":{"self":[{"href":"https:\/\/elpoligrafo.es\/en\/wp-json\/wp\/v2\/posts\/5708","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/elpoligrafo.es\/en\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/elpoligrafo.es\/en\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/elpoligrafo.es\/en\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/elpoligrafo.es\/en\/wp-json\/wp\/v2\/comments?post=5708"}],"version-history":[{"count":0,"href":"https:\/\/elpoligrafo.es\/en\/wp-json\/wp\/v2\/posts\/5708\/revisions"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/elpoligrafo.es\/en\/wp-json\/wp\/v2\/media\/5712"}],"wp:attachment":[{"href":"https:\/\/elpoligrafo.es\/en\/wp-json\/wp\/v2\/media?parent=5708"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/elpoligrafo.es\/en\/wp-json\/wp\/v2\/categories?post=5708"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/elpoligrafo.es\/en\/wp-json\/wp\/v2\/tags?post=5708"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}