Confidence: It's likely to be this, but I can't be certain.
Notes: Actually all Luzula species have long hairs on the margins of the leaves, at least near the base. In fact it's a fairly simple way of telling a Luzula from anything else. There are a couple which have have flowers borne singly (L. forsteri and L. pilosa) whereas this clearly small groups making up the clustered inflorescence. Then there are a couple with pale flowers (L. nivea and L. luzuloides although the first is an introduction) - and so it's not them. After that we're looking at leaf size and habit. Difficult to see in these photographs, but it does seem to be quite a large plant with multiple stems. I can see some leaf litter in the background too. Overall this has the jizz of L. sylvatica, but not possible, I think, to be certain without some idea of scale and knowing whether the plant is rhizomatous or not.