Edwin Morgan poem

I came across this Edwin Morgan poem in the comments thread of an article on the riots by James Meek in LRB.

Glasgow 5 March 1971
With a ragged diamond
of shattered plate-glass
a young man and his girl
are falling backwards into a shop-window.
The young man’s face
is bristling with fragments of glass
and the girl’s leg has caught
on the broken window
and spurts arterial blood
over her wet-look white coat.
Their arms are starfished out
braced for impact,
their faces show surprise, shock,
and the beginning of pain.
The two youths who have pushed them
are about to complete the operation
reaching into the window
to loot what they can smartly.
Their faces show no expression.
It is a sharp clear night
in Sauchiehall Street.
In the background two drivers
keep their eyes on the road.

Edwin Morgan