Fascinating point from my friend Grant, currently working with the Rwandan Health Ministry:
About ten minutes away from my house a car pulled up in front of me and out stepped two gigantic police men who approached me and asked for my papers. Luckily I had my passport on me from registering at the embassy earlier the day and handed it over. I wasn't quite sure what to expect from the police and to be honest I was kind of excited at the possibility of honing my bribery skills. However, after seconds, it was clear these police weren't looking for money. After asking me a few questions and making a few jokes with me they hopped back in their car and took off.
With one of the biggest and well-trained police forces in Rwanda, it became clear quickly that this encounter was a theatrical showing of security and force. Most likely a state-sanctioned policy to impress westerners, stopping westerners rather than locals is an easier way of displaying security to those who might bring economic prosperity to the country. If police stopped locals, fear would fill watching foreigners at the possibility. However, if police stop foreigners, they create a sense of comfort.