{"id":11317,"date":"2025-12-18T10:00:45","date_gmt":"2025-12-18T10:00:45","guid":{"rendered":"https:\/\/groupehyperion.com\/lexique\/surveillance\/"},"modified":"2026-07-30T07:40:53","modified_gmt":"2026-07-30T07:40:53","slug":"surveillance","status":"publish","type":"glossary","link":"https:\/\/groupehyperion.com\/en\/lexique\/surveillance\/","title":{"rendered":"Surveillance"},"content":{"rendered":"<section class=\"l-section wpb_row height_custom\"><div class=\"l-section-h i-cf\"><div class=\"g-cols vc_row via_grid cols_1 laptops-cols_inherit tablets-cols_inherit mobiles-cols_1 valign_top type_default stacking_default\"><div class=\"wpb_column vc_column_container\"><div class=\"vc_column-inner\"><div class=\"wpb_text_column\"><div class=\"wpb_wrapper\"><p><strong><a class=\"glossaryLink\"  title=\"Lexique: Surveillance\"  href=\"https:\/\/groupehyperion.com\/en\/lexique\/surveillance\/\"  data-gt-translate-attributes='[{\"attribute\":\"data-cmtooltip\", \"format\":\"html\"}]'  tabindex='0' role='link'>Surveillance<\/a><\/strong> is a discreet observation technique that allows an investigator to follow the movements, behaviors, or associations of a person without them realizing it. It is commonly used in private or professional investigations, notably to verify facts, confirm suspicions, or gather evidence. <\/p>\n<p>In a corporate context, <a class=\"glossaryLink\"  title=\"Lexique: Surveillance\"  href=\"https:\/\/groupehyperion.com\/en\/lexique\/surveillance\/\"  data-gt-translate-attributes='[{\"attribute\":\"data-cmtooltip\", \"format\":\"html\"}]'  tabindex='0' role='link'>surveillance<\/a> is frequently requested to <strong>verify suspicious sick leave<\/strong>, detect <strong>undeclared dual activity<\/strong>, or document <strong>cases of <a class=\"glossaryLink\"  title=\"Lexique: Unfair competition\"  href=\"https:\/\/groupehyperion.com\/en\/lexique\/unfair-competition\/\"  data-gt-translate-attributes='[{\"attribute\":\"data-cmtooltip\", \"format\":\"html\"}]'  tabindex='0' role='link'>unfair competition<\/a><\/strong>. It can also be applied to family matters, such as child custody or suspicions of adultery. <\/p>\n<p><strong>Groupe Hyp&eacute;rion<\/strong>, <strong><a class=\"decorated-link\" href=\"https:\/\/groupehyperion.com\/en\/?p=11159\" target=\"_new\" rel=\"noopener\">private detective in Montpellier<span aria-hidden=\"true\" class=\"ms-0.5 inline-block align-middle leading-none\"><\/span><\/a><\/strong> and throughout France, carries out <a class=\"glossaryLink\"  title=\"Lexique: Surveillance\"  href=\"https:\/\/groupehyperion.com\/en\/lexique\/surveillance\/\"  data-gt-translate-attributes='[{\"attribute\":\"data-cmtooltip\", \"format\":\"html\"}]'  tabindex='0' role='link'>surveillance<\/a> missions in compliance with the law, providing reports admissible in court.<br>\nTo learn more, visit our page dedicated to <strong><a href=\"https:\/\/groupehyperion.com\/enquetes-pour-professionnels\/\" target=\"_new\" rel=\"noopener\">professional investigation<span aria-hidden=\"true\" class=\"ms-0.5 inline-block align-middle leading-none\"><\/span><\/a><\/strong>.<\/p>\n<\/div><\/div><\/div><\/div><\/div><\/div><\/section>\n","protected":false},"excerpt":{"rendered":"<p><a class=\"glossaryLink\"  title=\"Lexique: Surveillance\"  href=\"https:\/\/groupehyperion.com\/en\/lexique\/surveillance\/\"  data-gt-translate-attributes='[{\"attribute\":\"data-cmtooltip\", \"format\":\"html\"}]'  tabindex='0' role='link'>Surveillance<\/a> is a discreet observation technique that allows an investigator to follow the movements, behaviors, or associations of a person without them realizing it. It is commonly used in private or professional investigations, notably to verify facts, confirm suspicions, or gather evidence. In a corporate context, <a class=\"glossaryLink\"  title=\"Lexique: Surveillance\"  href=\"https:\/\/groupehyperion.com\/en\/lexique\/surveillance\/\"  data-gt-translate-attributes='[{\"attribute\":\"data-cmtooltip\", \"format\":\"html\"}]'  tabindex='0' role='link'>surveillance<\/a> is frequently requested to verify suspicious sick leave,...<\/p>","protected":false},"author":1,"featured_media":11095,"menu_order":0,"template":"","meta":{"footnotes":""},"class_list":["post-11317","glossary","type-glossary","status-publish","has-post-thumbnail","hentry"],"yoast_head":"<!-- This site is optimized with the Yoast SEO plugin v28.3 - https:\/\/yoast.com\/product\/yoast-seo-wordpress\/ -->\n<title>Surveillance \u2013 Definition and use in private investigation | Groupe Hyp\u00e9rion<\/title>\n<meta name=\"description\" content=\"Discover what surveillance is, how it is used by a private detective, and in which cases it can legally assist you.\" \/>\n<meta name=\"robots\" content=\"index, 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