http://img132.imageshack.us/img132/1...9imagelob6.jpg A MEMORIAL dedicated to fallen police hero Stephen Oake has been wrecked.  The granite stone trimmed with gold was erected six months ago outside the Crumpsall flat where the Special Branch officer was stabbed to death by al-Qaeda terrorist Kamel Bourgass during a police raid in 2003.  In an attack which will spark outrage, the memorial has now been completely destroyed by vandals. A piece of the stone was still lying in a grass verge close to the scene in Crumpsall Lane this morning (Friday).  Police confirmed they are treating the incident as criminal damage and have launched an investigation. Police said the memorial was vandalised on Tuesday evening and pieces of the stone were then removed and thrown into the car park of Cheetham Hill Police Station, just over a mile away.  The pieces of stone damaged two marked police cars and another car belonging to an officer at the station in Cheetham Hill Road.  No-one was in the cars at the time and there were no injuries.  Superintendent Catherine McKay from the North Manchester Division said: This is a despicable incident which is an affront to Stephens family, his friends and his colleagues.  The offenders will have required some form of weapon to exert enough force on the memorial to break off chunks of marble.  The damaged memorial has now been removed out of respect for Stephens family. It will be replaced when it has been repaired.  This appalling incident shows a total lack of respect for a man who lost his life trying to protect members of the public across Greater Manchester.  The community in North Manchester has always been very supportive of Stephens family and friends following his death and I hope that they come forward with information which will lead us to those responsible for this.  The memorial stone was unveiled as part of a ceremony celebrating DC Oakes life in September last year.  The granite memorial was paid for by Michael Winners Police Memorial Trust .  Read more about Stephen Oake s heroism and the campaign to honour him using the links to the right of this story.