"Dawn will always be remembered by us as a gentle soul who was generous to a fault", they said in a statement released by London's Metropolitan Police.
The death of Sturgess, a 44-year-old mother of three, on Sunday transformed the investigation into a potential murder investigation.
Britain has blamed Russian Federation for the attack on the Skripals - a charge strongly denied by Moscow which has challenged British authorities to publish the evidence.
The backdrop to this meeting was British but the issue was global as police issued a Novichok warning to the residents of Salisbury. "Charlie is still very unwell and will continue to require specialist, round-the-clock care here at Salisbury District Hospital", the report says.
A statement from the Counter Terrorism Policing Network said: "The bus that Dawn and Charlie travelled on, on Friday night was identified and seized by Wiltshire Police on Wednesday 4 July - initially as a precautionary measure to check and ensure there was no risk to the public".
"Any contact officers have with Charlie will be done in close consultation with the hospital and his doctors".
The pair fell ill at Mr Rowley's home in Amesbury - eight miles from Salisbury - on June 30, with anti-terror police launching a massive operation to find the source of the contaminant, which is believed to be inside a container.
"This is a very rare substance banned by the worldwide community and for there to be two separate, distinct incidents in one small English county is implausible to say the least", he said.
However, he said that it was "implausible" for there to be no connection between two incidents.
He said it is possible Sturgess and Rowley had the container in their possession for some time before opening it with disastrous results.
"The brutal reality, however, is that I can not offer you any such assurances or guarantees at this time".
Police suspect the couple were exposed through a contaminated item left over from the first attack, which Britain blames on Russian Federation.
"Yes, that's why we need to be intelligence-led, which is why we need witnesses that tell us where it might be", Mr Basu replied.
"We are cross about the scathing comments".
Sam Hobson, a friend of the couple, told AFP he had visited Salisbury with them the day before they fell ill.
Ms Sturgess, who had a daughter aged 11 and two sons aged 19 and 23, had...
Those locations are Muggleton Road, Boots pharmacy, and the Baptist church in Amesbury, and John Baker House and Queen Elizabeth Gardens in Salisbury.