This is from the amusing side of the news: Police officers in Ecatepec, a sprawling municipality to the east of Mexico City, are carrying guns with empty cartridges. Due to red tape tying up a potential purchase with the State of Mexico's security agency, some Ecatepec cops are without bullets and many are apparently using out-dated equipment.
Cops in Mexico are obviously notorious for corruption, but it partially stems from the fact that many officers must purchase all their supplies, put gas in their patrol cars and even buy bullets. Thus, extracting mordidas (bribe), stretches their already slim paycheques. Some, though, are just plain nefarious and bribe in order to get rich.
So how much worse is public security in Ecatepec without armed cops patrolling the streets? Probably not much.