I was on a highway marked 55 mph. I was traveling at 60 mph with small fluxes between 60 to 65 mph. I was pulled over by a cop who told me I was speeding at 71 mph. He has written down on my speeding ticket 3 different locations. Jackson run, miller hill and mckowns, therefore which location was it?  He wrote down a distance of 0.017 miles and 0.96 seconds. There were no white lines or anything indicating certain distances. How does the officer know what distance was traveled? I also calculated speed using s = d/t. After using the formula I calculated my "speed" to be 63 Mph. I have no idea where the officer came up with 71 Mph as how fast I was traveling.. Next near my signature he dated it 5/20/20.. near his signature he wrote the correct date of 5/24/20. The dates not being the same is that evidence to throw the ticket out? He wrote me a ticket of going 65 mph in a 55mph.. he also wrote down self as the speed timing device operator. I was curious if A the ticket would still be valid bc the numbers he listed from the robic stopwatch distance and time from my calculation is 63 Mph not 65Mph. B. I wanted to know if it would still be valid since he wrote down an incorrect date the incident occurred near my signature. I know it's kinda confusing! I hope someone can give me advice. Thank you!