investigative analysis." In 1999, The percentage of accurate criminal profilers was only estimated to be at 21%, whereas in 2020 the accuracy was estimated to be at 86%. Popularity Profiling has continuously gotten more accurate throughout the years. In the year 2008, only 42% of cases were solved using criminal profiling. In 2019 the FBI was able to solve 56% of the cases that were not solved back in the year 2008. Profiling as an investigative tool has a high level of acceptance among both the general public and police. In the United States, between 1971 and 1981, the FBI had only profiled cases on 192 occasions. By 1986, FBI profilers were requested in 600 investigations in a single year. By 1996, 12 FBI profilers were applying profiling to approximately 1,000 cases per year. In the United Kingdom, 29 profilers provided 242 instances of profiling advice between 1981 and 1994, its usage increasing steadily over that period. The usage of profiling has been documented in Sweden, Finland, New Zealand, South Africa, Germany, Canada, Ireland, Malaysia, Russia, Zimbabwe, and the Netherlands. Surveys of police officers in the United States, the United Kingdom, and Canada have found an overwhelming majority consider profiling to be useful. A 2007 meta-analysis of existing research into offender profiling noted that there was "a notable incongruity between [profiling's] lack of empirical foundation and the degree of support for the field." Profiling's continued popularity has been speculatively attributed to broad use of anecdotes and testimonials, a focus on correct predictions over the number of incorrect ones, ambiguous profiles benefiting from the Barnum effect, and the popular appeal of the fantasy of a sleuth with deductive powers like Hercule Poirot and Sherlock Holmes. Notable profilers Notable profilers include Roy Hazelwood, who profiled sexual predators; Ernst Gennat, a German criminologist, who developed an early profiling scheme for the police of Berlin; Walter Charles Langer, who predicted Hitler's behavior and eventual suicide; Howard Teten, who worked on the case of Martin Luther King Jr.'s assassination; and John E. Douglas, who worked on a wave of child murders in Atlanta in the 1980s. According to the BAU the probability of a profiler being used as "expert testimony" in court and leading to a guilty verdict is 85%. There is a difference between the hard sciences and the social sciences related to testimony and evidence in the courtroom. Some experts contend that offender