Wonder how Wade Anders obtained nicotine sulfate in the first place. You know, the "fingerprints" on the paper thing was classic Columbo. There are a few spots in this episode where only Columbo would figure out a clue and take it to the next level. And of course at the end when Anders says something to the effect that Columbo has a new story for "Crime Alert" and Columbo replies, "No, actually the 11 o'clock news." THat was a good line also. Two thumbs up on this episode for me anyhow.....

Nicotine sulfate is used in commercial insecticide. Wade could have gotten it off the gardener's truck, had the director, writer, whoever bothered with that detail.

Joe

WHAT GARDENER?

The gardener who trimmed the hedges out front of Wade's office. This was a somewhat rather big clue.

Even the best ad for "Miracle Grow" doesn't claim the change that the security film purports to show.

Great point Bob.