Are the white circles or low mounds at junctions genuine roundabouts?

Are the white circles or low mounds at junctions genuine roundabouts? At a minor road junction near where I live it is impossible go around it like many others. If seen by a zealous lawman could I be...

Someone drove into me on a mini-roundabout but claims it's my fault - what can I do?

I was involved in a confusing accident at a dreaded mini roundabout. No one was hurt but both cars were written off. There was a queue of traffic coming from the right and turning right which I was giving...