They have thick, dark-green skin and a wide base which tapers to a point. Poblano peppers are mild to medium-hot. Poblano peppers register between 1,000 and 2,000 Scoville heat units on the Scoville Scale.
You can look at crime mapping (well, in 14-day chunks) by neighborhood at http://141.157.54.34/bpdmaps/police.htm. JHU's main (Homewood) campus is in the Northern district. Abell, Charles Village, Guilford, Hampdon, and JH Homewood are all neighborhoods near campus. Most of those seem relatively safe, but it might be a good idea to compare if you're looking for a place to live.
Bienvenidos a Boyle Heights. Boyle Heights [is] one of the oldest [neighborhoods] in Los Angeles. It's located right over the 1st street bridge from Downtown Little Tokyo. Biking distance from the Grand Central Market, the fabric district, the downtown arts district, Union Station, and Chinatown.