Enemy here... We use Lidar in my area, and a lot of departments are moving towards Lidar. Its vehicle specific (point at a specific car) as opposed to radar (just alerts to a vehicle speeding and the officer has to look up and determine which vehicle is going the fastest). The benefits are that I can testify that I aimed the laser directly at YOUR vehicle and tested YOUR speed.
The drawbacks for you are that the laser unit isn't continuously on. I watch traffic and wait until I see a vehicle that appears to be speeding. Then, and only then, I aim the laser at your vehicle and pull the trigger. The laser fires only as long as I hold the trigger. By the time you react to your laser detector, I've already got your speed and made a decision to pull you over or not.
I would suggest that if you want to continue your streak of no tickets you slow down. I don't have a radar or laser detector. I haven't been pulled over in 14 years... I just drive within reason most of the time.
Enemy out...