The Metropolitan Police has published its vision of how it will use technology to transform crime fighting in the capital.
The force is set to invest up to £200 million over three years into new technology, as part of the Total Technology strategy.
According to the report, it is said to cut ongoing IT costs by 30%, allowing officers to spend more time catching criminals and helping victims.
More top news
Paramedics were on standby outside the police cordon as armed officers stood by the property.
A team of researchers has taken samples from the ten busiest London Underground lines to work out which are the dirtiest.
The action comes on top of an emergency timetable which has seen hundreds of trains a day being axed.