blueman wrote:
I was working last night on an electrical circuit that was shut off
at
the breaker.

Nevertheless, the voltage from neutral to ground and from hot to
ground both measured about 30V. This was enough to cause my voltage
probe to buzz and to even cause a compact flourescent to light
dimly. The current across the circuit however measure just 0.7 mA.

Am I correct in assuming that this is probably just induced voltage
from neighboring wires that run alongside it or is there potentially
something more serious and sinister going on?

Thanks!

Depends what you measured the 30 Volts with.

The modern digital electronic meters are very high impeadance and can
easily pick up 30 volts from induced voltage as you call it.

A neon test light is also pretty sensitve to induced voltage.

Use an older mechanical volt meter (Simpson 260) or make a test lamp
with a night light bulb.

Mark