Advanced Techniques in the Management and Intelligence Gathering in the Search for Missing Persons

  • Christopher Si Young

Student thesis: Doctoral Thesis


The collection of four published journal articles, the two books and instructor training materials referenced in this thesis represent the aggregation of over 40 years of the researcher’s tacit (unspoken or undocumented) knowledge as an experienced expert and his reflexive (insider) knowledge in the management of missing person incidents. Through these works, explicit knowledge was created by converting tacit understanding into written forms and systemized into procedures and praxis (practices) to be used by less experienced managers in the search for missing persons.
The purpose of each work was to research, study and collect the tacit knowledge from a community of experts, including the researcher’s own reflexive research and experiences, thus establishing what was the current reality (ontological knowledge). The problems and shortcomings in the managing of missing person incidents specifically in the urban environment as well as the collection of intelligent information on missing subjects were further defined.
Finally, the solutions were developed into new knowledge and beliefs (epistemes) followed by corroboration into best practices thus impacting and improving the outcome in the search for missing persons.
Date of Award7 Sept 2023
Original languageEnglish
Awarding Institution
  • University of Portsmouth
SupervisorKaren Shalev (Supervisor) & Craig Collie (Supervisor)

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