Anyone got any experience of living in Sudan? (specifically Khartoum?)

[Slouchy]

My little sister is off on a 6mo placement to Khartoum in October (she works for a medical charity). We were talking today and she was saying she has no idea how much Sharia Law impacts things like dress, women's behaviour etc in Khartoum.She will get a briefing before she goes but it is more focused on the work than cultural stuff. She is pretty nervous at the mo!

Any hints I can pass on?

TIA