You’re unlikely to encounter any violent crime in Salamanca, however personal theft is a known issue. Pickpockets usually operate in crowded areas so be careful of people who bump in to you- they might be distracting you from your wallet. Keep your valuables securely on you and use secure zipped bags. When wearing a bag, cross it over your body so it can’t get snatched off your shoulder.
Take extra care during festivals and evening entertainment. Also, beware of hanging your jacket over a chair in restaurants and cafes. Don’t make your stuff easy to grab. Keeping everything close and in your eyeline is your best bet.