West Midlands Police has said a "dedicated team of detectives" are working to trace material related to the pub bombings. A statement from the force said:
Considerable progress has been made with over 4,000 individual items collated, which had been previously stored by a number of different locations and organisations. This important work continues.
We have also made a commitment to consult independent forensic experts to assess whether more tests can be carried out.
Officers from the unit have travelled to Europe and engaged with a leading forensic provider.
When we have completed this work we will better understand what opportunities exist to bring to justice those responsible for the pub bombings.
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The Met Office said a site at Winterbourne, in Edgbaston, recorded 58mm of rainfall in just one hour on Sunday afternoon.
Pollen: East Midlands Latest Update
A cloudy start to Bank Holiday Monday, although any low cloud and mist should quickly burn off to give some good spells of sunshine.