Christine, if you're worried about the drug-related crime plaguing parts of Mexico you have nothing to worry about (as long as you have no intention of dealing with drugs). Almost all of the 34,000 victims of the violence are gang members, law enforcement officers, city officials or investigative reporters (and sadly some of their family members). The murder rate in Tijuana is on a par with Philadelphia.
As fo other crime, petty crime, such as theft, robbery and pickpocketing... Cabo is like any other popular tourist destination - you need to secure your valuables, avoid dark streets at night and use your 'street smarts'. Have a look at this WorldNmads.com safety hub article on petty crime in mexico:
It has some handy tips for staying safe.
Phil (from the safety hub) about 9 years ago