To beat a speeding ticket, you must build your case and present evidence that proves your innocence. To do this, you must have solid documentation that backs up your claim, and cannot rely on a situation in which it is your word against the officers, as the officer is given the benefit of the doubt in such cases he the officer is perceived to have no conflict of interest and is impartial, while you aren't. You need to have record of eyewitnesses and their accounts, or pictures that can prove your innocence, or records that show the radar gun used was either incapable of being accurate from a set distance or that it's calibrations were not routinely tested. And you need to be sure to never plead guilty, and be opportunistic if there is an chance to take some form of driving school instead of receiving a ticket.