Here is the opening sentence from the US State Department web site regarding Istanbul and safety: ""Overall Crime and Safety Situation
""Istanbul, Turkey's largest city, is a rapidly growing metropolis divided by the Bosphorus Strait. Despite its population of more than 13.5 million people, as well as the mass of visitors coming from other countries, the city is listed as one of the safest in the world. ""
https://www.osac.gov/pages/ContentReportDetails.aspx?cid=15181