This article is from the source 'bbc' and was first published or seen on . It will not be checked again for changes.

You can find the current article at its original source at http://news.bbc.co.uk/go/rss/-/1/hi/england/london/6605147.stm

The article has changed 2 times. There is an RSS feed of changes available.

Version 0 Version 1
Bid to trace police war officer Bid to trace police war officer
(1 day later)
A police force is asking for help in trying to trace relatives of an officer who was killed on duty 67 years ago.A police force is asking for help in trying to trace relatives of an officer who was killed on duty 67 years ago.
War Reserve Police Officer Jack William Avery was stabbed to death in Hyde Park, central London, after he went to question a man acting suspiciously.War Reserve Police Officer Jack William Avery was stabbed to death in Hyde Park, central London, after he went to question a man acting suspiciously.
Frank Cobbett, 42, was sentenced to death for murder but he was granted mercy and served 15 years in jail.Frank Cobbett, 42, was sentenced to death for murder but he was granted mercy and served 15 years in jail.
The Met is to unveil a memorial in Hyde Park to Mr Avery this year and want to invite his relatives to the ceremony.The Met is to unveil a memorial in Hyde Park to Mr Avery this year and want to invite his relatives to the ceremony.
Mr Avery, warrant number 20997, joined the Force on in March 1939 and was posted to "A Division". Mr Avery, warrant number 20997, joined the Force in March 1939 and was posted to "A Division".
Blood transfusionsBlood transfusions
Whilst on patrol in Hyde Park in July 1940 near to the gun emplacements, he saw a man lying near to the guns who appeared to be writing on a piece of paper.Whilst on patrol in Hyde Park in July 1940 near to the gun emplacements, he saw a man lying near to the guns who appeared to be writing on a piece of paper.
When challenged, the man produced a knife and lunged at Mr Avery, stabbing him in the left thigh.When challenged, the man produced a knife and lunged at Mr Avery, stabbing him in the left thigh.
After a struggle, the man was detained by Mr Avery, War Reserve Constable Hyman Krantz and a passer-by called George Bryant.After a struggle, the man was detained by Mr Avery, War Reserve Constable Hyman Krantz and a passer-by called George Bryant.
Jack was taken to St Mary's Hospital where after surgery and two blood transfusions he died from his injuries.Jack was taken to St Mary's Hospital where after surgery and two blood transfusions he died from his injuries.
Cobbett, a labourer of no fixed address, was charged with wilful murder.Cobbett, a labourer of no fixed address, was charged with wilful murder.
He appeared at the Central Criminal Court in July 1940 and was later sentenced to death. He was granted mercy and his sentence reduced to 15 years penal servitude.He appeared at the Central Criminal Court in July 1940 and was later sentenced to death. He was granted mercy and his sentence reduced to 15 years penal servitude.
If you are a relative of Jack Avery's or indeed knew him please contact Supt Simon Ovens, Royal Parks Police, Old Police House, Hyde, London, W2 2UH.If you are a relative of Jack Avery's or indeed knew him please contact Supt Simon Ovens, Royal Parks Police, Old Police House, Hyde, London, W2 2UH.