It led to an armed response from the police who closed off part of town.
Four extra armed response units are in Luton to deal with expected "further violence", police say.
The force said they would be called to "violent or threatening situations" instead of armed response units.
Six police vehicles, including one dog van and an armed response vehicle, were involved in the incident.
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Armed response vehicles will also be patrolling major transport hubs and officers will be using stop and search powers.
Almost every force already has armed response vehicles, equipped and ready to attend the scene of a robbery or siege.
Dog units and armed response officers were called in as the man tried to enter a house in Stretton Road.
Supt Amanda Pearson, of Thames Valley Police, said an armed response unit was sent due to the nature of the call.
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Under his plans, staff from four specialist units - armed response, dog handling, the motorway unit and some other support teams - will be redeployed.
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The H Division, which includes the operational side such as the road policing units and armed response, will have some resources split across the divisions.
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Every force has armed response vehicles which can be mobilised in a matter of seconds and directed towards incidents and that has been a development in recent years.
However, several leading members of the transitional parliament, known as the National Transitional Council, refused to approve any armed response against the militants because of their fear of sparking an internecine war.
Well, inside five minutes 6 police cars arrive, sirens wailing and blue lights flashing and an armed response team crash through the front door-to find our burglar, safe and sound, who they duly arrest.
However, criticism of the Pakistani and Indian armed forces in their response efforts is overdone.
It envisages a collective response to armed attack against one of its members.
The French raids began this week in response to an armed separatist movement, which has cut off the North of Mali from the rest of the rest of the country and threatened strict and reportedly violent treatment of the local population.
Cumbria Police deploy every armed officer in the county in response to the shootings.
Meanwhile, initial estimates of the cost of UK Libya operations have been released by Armed Forces Minister Nick Harvey in response to a parliamentary question in the House of Commons.
But because there are so few mainstream journalists covering this beat armed with sufficient technological insight, the response to Stuxnet has largely been one of alarm and speculation.
In the hurricane-ravaged city, where people are thirsty and hungry, living in squalid conditions and in fear of armed bands of marauding looters, the response is seen as confused, ineffective and puzzlingly slow.
The Northern Ireland-based battalions of the regiment are to be disbanded on 1 August 2007, as part of the response to the IRA ending its armed campaign.
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On the eve of his confirmation hearing, Hagel offered his opinions on a long list of issues, from cuts in defense spending and women in combat to penalties against Iran, in a 112-page response to a questionnaire from the Senate Armed Services Committee.
The Royal Air Force's 51 squadron, the base's quick response force, crossed the runway in two heavily-armed, Coyote open-topped vehicles.
"The presence of armed security personnel in a school adds a layer of security and diminishes the response time that is beneficial to the overall security, " said Asa Hutchinson, a former Republican congressman who led the NRA task force that developed the report.
As a response to the Newtown shootings, the NRA has proposed that every school have armed security.
There are more armed officers out on the streets of England and Wales than there have ever been really in response to the gun crime problems in certain cities and that's to reassure the public that the police do take this seriously.
It is certainly the case that there are a number of bad actors and armed groups of extremists in Libya who might take advantage of a situation that was brought about initially as a response to the video in question.
Afterwards, New York Mayor Michael Bloomberg, who is an advocate for tighter gun control laws, said the NRA's response was "a paranoid, dystopian vision of a more dangerous and violent America where everyone is armed and no place is safe".
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