julchak t1_j9ih904 wrote on February 22, 2023 at 5:06 AM

Check to see MA law on how police can check your speed. If he did not use a radar gun, but used his vision to estimate, this is a method some states allow, however you could more easily argue that one (you could request a copy of the officers last cert for this estimation process to see how long ago it was, photograph the area he was parked and see how his visibility was to your vehicle, etc)

XoeDanger t1_j9jstla wrote on February 22, 2023 at 2:05 PM

Estimation, pacing, radar, lidar, and timing are all proper in MA.

Estimation is basically *exclusively* listed in conjunction with radar/lidar... as in, the officer first estimated the vehicle traveling greater than the posted speed limit, then used technology to confirm and determine the exact speed.

There is a Ch/Sec for "faster than reasonable" for conditions"... where estimated would be proper in and of itself... but you wouldn't have the specific dollar fine amount that is calculated based on actual speed / posted limit.