Unlike some states, Washington does not have a "point" system for traffic tickets. In Washington the system is much simpler. In addition to potential fines and license suspension, if you have a "moving" violation on your driving record, the violation is visible to insurance companies and they may increase your rates. On the other hand, a "nonmoving" violation may still cost you some money but it won't trigger a driver's license suspension and usually won't affect your insurance rates.
Law enforcement uses a few different methods to determine how fast vehicles are traveling and whether to write a speeding ticket. They often use a radar unit and check the "SMD" (for "speed measuring device") box on the front of the ticket. Sometimes they use a "pace", which is when the officer follows a suspected speeding vehicle at a constant distance for a certain period of time and using the officer's vehicle speedometer to determine speed.