Determine the main target of monetary policy

Since 1997 'official' main target of monetary policy has been to 'hit' inflation rate target set by government. Though since the onset of recession in 2008 Bank of England has set interest rates to stimulate aggregate demand. Low interest rates try to achieve this objective in 2 ways. First, households with large mortgages have been able to take advantage of 0.5% rate and pay off debt. Second, saving has become unattractive and so, in theory at least, people decide to consume instead of saving.