I don't know the Las Vegas area too well. While it's important to keep alert at all times, which areas are considered to be the bad ones?
If you're driving and the street signs go from being green to being blue, turn the **** around because you just entered the ghetto.
Summerlin, which has multi-million dollar homes is the #1 area for home invasions
North Las Vegas (or Las Vegas Proper) is worse than Compton and has an influx of 4000 new residents a MONTH.
Henderson (also called hendertucky) looks nice, but the Mexican gangs ruin it. very bad crime
Then there is Green Valley where I live. Mostly quite, until recently.