evidence: Republicans and loyalists painted murals on buildings and gable walls, as a way of marking out territory and memorialising those lost throughout the 30-year conflict. [...] Professor Peter Shirlow, head of Irish Studies at Liverpool University, said the appearance of the NHS murals marked an "important cultural moment" within Northern Ireland's society. [...] Suzanne Lyle, head of visual arts at NI Arts Council, said she has seen a move away from political murals to more "community-themed ones" over the years.