I am not sure if all of you are aware of this, but one of the best tips that I learned for spotting plagiarism is looking at the quotation marks. If a paper has been copied and pasted the quotation marks will be straight up and down, whereas if a paper has been typed out originally, the quotation marks will have a curve to them. The font does not matter, unless it is a really creative font that the essay should not be in anyway. I hope this helps!