Basel is, in common with all Swiss cities, generally a safe place to be. If you do feel threatened, be sure you are somewhere you are seen such as a restaurant or bar or use a public phone: the emergency number is 117, and operators usually speak English.
Generally, the Swiss police are fairly discrete. However, traffic violations tend to treated seriously - jaywalking can be fined on the spot. As a result, drivers tend to be a considerate bunch and generally stop and crossings.
Football is the only real exception to this. FC Basel attracts a large following and football matches tend to be heavily policed by police in riot gear. Games are, however, generally safe just use your common sense and stay away from the hardcore hooligans who tend to occupy the cheap seats the can afford.
Trams are an important part of most Swiss towns and the public transport system. In my opinion, Baseler trams tend to be a bit quieter than most. There plenty of them about - especially around the Basel SBB, Barfüsserplatz, Marktplatz, Aeschenplatz, Messeplatz - so keep your eyes and ears open. If they ring their bells at you get out of their way. If you feel unsafe riding public transport late at night sit at the front near the driver - generally the drivers can be helpful if you're lost or in trouble.
My personal advise on what to do and see in Rome
Mt Egmont seen from the King Edward Park playing fields in Stratford
The Stratford Glockenspeil in Taranaki
The Antelope - your local, dog friendly, beer friendly pub
Must see ancient monuments around Rome
Historical information about the gothic Antwerp Cathedral
What to see, where to stay and eat in historic Antwerp
Recommended hotels in Vienna, Salzburg and Bregenz
Berne - Information on and about Berne
Europe - Travel information from around Europe
New Zealand pictures - A gallery of pictures from my travels in New Zealand
Zähringen - Brief history of the Noble family of Zähringen
Travel pictures - Pictures from my travels in Switzerland, Italy and New Zealand
New Zealand - A personal guide to things to do, see, eat and drink in New Zealand
Eclipse chasing - Essential total eclipse trip planning information from 2010 to 2019
2011 travel pictures - Pictures and images from my 2011 travels in Switzerland, Antwerp and London
Zürich pictures - Pictures from and around Zürich
Marlborough Sounds - sunset seen from the Interislander - Sunset over the Marlborough Sounds in New Zealand seen from the Interislander ferry
Mark Sukhija is a travel and wine blogger, photographer, tourism researcher, hat-touting, white-shirt-wearing, New Zealand fantatic and eclipse chaser. Aside from at least annual visits to New Zealand, Mark has seen eclipses in South Australia (2002), Libya (2006), China (2009) and Queensland (2012). After twelve years in Switzerland, Mark moved back to London in 2012. You can follow Mark on Twitter or Facebook