A Maine State Police unmanned aerial vehicle hovers on Thursday outside Maine State Police headquarters at the Central Maine Commerce Center in Augusta.

Maine State Police Sgt. Darren Foster talks about the automatic collision avoidance system on an unmanned aerial vehicle used for traffic accident investigations on Thursday outside Maine State Police headquarters at the Central Maine Commerce Center in Augusta.

Maine State Police Specialist Patrick Munzing talks about unmanned aerial vehicles during a demonstration on Thursday Maine State Police headquarters in Augusta.

The screen on the unmanned aerial vehicle remote control shows the Maine State Police headquarters at the Central Maine Commerce Center on Thursday in Augusta.

A photo taken by a Maine State Police drone shows a recent crash in Northfield when a pickup truck crashed into a blueberry truck.

Maine State Police Specialist Michael Pion, left, and Sgt. Darren Foster demonstrate an unmanned aerial vehicle used for traffic accident investigations on Thursday outside Maine State Police headquarters at the Central Maine Commerce Center in Augusta.

Maine State Police Specialists Patrick Munzing, left, and Michael Pion fly unmanned aerial vehicles during a demonstration on Thursday in Augusta.

Maine State Police Specialist Patrick Munzing, right, launches an unmanned aerial vehicle on Thursday outside Maine State Police headquarters in Augusta.

Maine State Police Specialist Patrick Munzing prepares to launch an unmanned aerial vehicle on Thursday outside Maine State Police headquarters in Augusta.