How fast do you have to be speeding to be arrested instead of getting a ticket?
In other words, if you are pulled over for speeding, how fast can you go and still get a ticket? Is there a set line as in if a person is going over X mph, they have to legally be arrested?
In my state, they have the right to confiscate your license on the spot for 20 over the limit. I have never heard of it actually happening though.
As for "going over X mph, they have to legally be arrested," if you are going too fast, the officer may choose to arrest you for reckless endangerment or a similar offense, but I doubt that is mandatory in most states. There are not a lot of laws requiring mandatory immediate arrest with no discretion for the officer. Some places have this type of law for domestic violence complaints, but that is because of the long history of sweeping such incidents under the rug.