A shadowy flight into the dangerous world...

I was watching Knight of the Drones last night. This is the first episode where the Passive Laser Restraint System was mentioned.

Since Kitt brought it up before Michael met up with Bonnie? Would that make the PLRS another creation of April's? Or was it implemented between the time April disappeared, and Bonnie came back?

Or was it there from the very beginning, and I completely missed that fact.

Just in theory I mean, who could have created it?