Megavolt uses lots of electricity. So I'd tap into the Department of Water and Power's computer and see where there were any power surges.
7 seconds sound clip from Darkwing Duck - Duck Blind (S1E8).
You can hear this line at 00:17:47.800 in the DVD version of the TV Series.
Quote context
[...]
- Yeah? Well, if I'm so good, how come I couldn't stop Megavolt, huh?
- Oh, forget it, Gosalyn. You said it yourself.
- Let the police handle him. I am retired.
- Well, I'd try to catch him off guard, at his hideout.
- Of course, we'd have to find it.
- Yeah, that would be kinda hard.
- 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.
[...]