Rapport is an integral part of interviewing, viewed as fundamental to the success of intelligence elicitation. One collection capability is human intelligence (HUMINT), the discipline charged with eliciting intelligence through interactions with human sources, such as covert human intelligence sources (CHIS). To date, research has yet to explore the perceptions and experiences of intelligence operatives responsible for gathering HUMINT within England and Wales. The present study consisted of structured interviews with police source handlers (N = 24). Rapport was perceived as essential, especially for maximising the opportunity for intelligence elicitation. Participants provided a range of rapport strategies while highlighting the importance of establishing, and maintaining, rapport. The majority of participants believed rapport could be trained to some degree. Thus, rapport was not viewed exclusively as a natural skill. However, participants commonly perceived some natural attributes are required to build rapport that can be refined and developed through training and experience.

The collection of accurate, detailed, and timely intelligence buttresses critical law enforcement decision-making. However, the quality and quantity of the intelligence gathered relies heavily upon the interviewing techniques used to retrieve it. The perceptions of intelligence practitioners are key to developing an understanding of practices concerning intelligence collection. Yet, to date, no research has been undertaken that explores the United Kingdom's Source Handlers' perceptions of the interviewing processes employed with informants. The present study interviewed 24 Source Handlers from Counter Terrorism Dedicated Source Units in the United Kingdom. Five themes emerged from the interviews, (i) a comparison between interviewing and debriefing; (ii) the PEACE model in intelligence interviews; (iii) the importance of effective communication; (iv) Source Handlers' use of cognitive retrieval techniques; and, (v) Source Handler interview training. The perceived commonalities between interviewing and debriefing provided support for the transferability of investigative interviewing research and practices into the collection of Human Intelligence (HUMINT), reiterating themes (ii), (iii), and (iv). Finally, participants highlighted a need for additional training concerning intelligence gathering techniques, as police officers who are responsible for gathering HUMINT could benefit from further professional development based on investigative interviewing research and professional practices.

Sources (CHIS) provide unique access to criminals and organised crime groups, and their collection of intelligence is vital to understanding England and Wales' threat picture. Rapport is essential to the establishment and maintenance of effective professional relationships between source handlers and their CHIS. Thus, rapport-based interviewing is a fundamental factor to maximising intelligence yield. The present research gained unprecedented access to 105 real-life audio recorded telephone interactions between England and Wales police source handlers and CHIS. This research quantified both the rapport component behaviours (e.g., attention, positivity, and coordination) displayed by the source handler and the intelligence yielded from the CHIS, in order to investigate the frequencies of these rapport components and their relationship to intelligence yield. Overall rapport, attention and coordination significantly correlated with intelligence yield, while positivity did not. Attention was the most frequently used component of rapport, followed by positivity, and then coordination.

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