We don't have proof. Somebody'd have to go in and scope it out.
3 seconds sound clip from Darkwing Duck - Duck Blind (S1E8).
You can hear this line at 00:18:15.744 in the DVD version of the TV Series.
Quote context
[...]
- Shanghaied by a couple of kids and a crash-crazy aviator.
- Oh, how the mighty have fallen.
- Chill out. You've still got what it takes.
- It was you who figured out where to find Megavolt.
- The Lighthouse at Beaker's Point.
- We don't have proof. Somebody'd have to go in and scope it out.
- I am not going! I am out of the crime-busting business, remember?
- Be right back. We're just going to look around.
- And if Megavolt is there, you get right back here and we'll call the Army.
- Gotcha.
[...]