Persuasive Techniques

I got this image from Google but its off the sight http://www.webdesignerwall.com/ . Isn't it pretty:)

I think the best techniqe for me to use would be number 4 using real life experiences and/or stories. I think this because the best way to sell my point on whether criminal profiling is an effective tool or not, is to present the audience with real cases that used this in them and where a key part of the investigation. I plan to use this technique by telling a few examples of cases that had criminal profiling used to identify the unsub. I hope to stir beleif in the audience and a better understanding of what criminal profilers do in their work.