The manhunt Military_operation lasted almost seven days , and was the largest in modern British history , involving Cause_to_be_included 160 armed officers and armed response Communication vehicles , many seconded for the operation from other police forces .

Following the final confrontation Hostile_encounter , the IPCC expanded Expansion the investigation Criminal_investigation to include Cause_to_be_included the immediate events leading Causation up to Moat 's death Death , but ruled out Removing investigating Criminal_investigation how the manhunt Military_operation itself had been conducted Action .

The manhunt Arrest began Process_start after the shootings Use_firearm of Stobbart and Brown in the early hours of 3 July 2010 in Birtley .

The police manhunt remained Temporary_stay focused there with several further suspected sightings Perception_active , until the final Process_end confrontation Hostile_encounter at Riverside , Rothbury .

After a dramatic initial escape Escaping , Booth was killed Killing at the climax of a 12-day manhunt .

The three suspects went on the run , initiating Process_start a large manhunt .

In two separate incidents Catastrophe during the manhunt , police shot at three civilians unrelated to Dorner , mistaking their pickup trucks for the vehicle being driven Motion by Dorner .

A major manhunt led to Causation the discovery Criminal_investigation of the suspects , who exchanged Exchange fire with police .

The series of attacks began Process_start in mid-morning in Lamplugh and moved Motion to Frizington , Whitehaven , Egremont , Gosforth , and Seascale , sparking a major manhunt by the Cumbria Constabulary , with assistance Assistance from Civil Nuclear Constabulary officers .

The resultant manhunt Scouring was described Statement by the Metropolitan police commissioner Sir Ian Blair as `` the greatest operational challenge Confronting_problem ever faced '' by the Met .

During the manhunt Scouring , police misidentified Jean Charles de Menezes as one of the suspected bombers and shot Use_firearm and killed Killing him .

An unprecedented Catastrophe manhunt Scouring for Dzhokhar ensued Coming_to_be on April 19 , with thousands of law enforcement officers searching Scrutiny a 20-block area of Watertown ; residents of Watertown and surrounding Surrounding communities were asked Request to stay indoors , and the transportation system and most businesses and public places closed Being_in_operation .