The Pros And Cons Of British Police Weaknesses

Another weakness is that the study was focused on British police officers, and can therefore not be generalised to larger populations. This can make it difficult to use and reflect on in other theories and research. As well as making it impossible to create a comparison and contrast together with correlations. This is based on the ground that there is a likely difference between police officers and normal people, and thereby make the results impotent of being generalized.
To further compare and contrast the pros and cons, though there not being a control group can reduce the reliability of a correlation existing, they executed this due to ethical reasoning. This is because ordinary people were not allowed access to these cases since they
This gives a larger reliable answer towards one case due to multiple participants giving correlative answers. Another strength in this investigation is as said above, the ecological validity. This is due to the experiment using real police officers and were therefore able to produce a natural setting and situation. On the other hand, because of this there is an increase in the chances of external factors being able to affect or alter the findings. To give a supplementary example, one of the many factors that could affect the results could be performance pressure as the officers knew they were tested. Simultaneously, it could make them overthink or change their answers due to not wanting to
It is important to keep in mind that there is no singular behaviour or expression of deception. There are only a wide spectrum of queues to show possible deception. Just as normal lie detectors, micro-expressions are indicators of problematic thinking and feelings. This could therefore trigger feelings that could show signs of deception such as stress, psychological discomfort, anxiety, dislike, issues, or tension, but not deception as a definite. This is why there is research being investigated on the basis of creating a more accurate lie detecting machine, to potentially be able to control more variables. Which our human eyes would not be able to control, as we may have an emotional or bias