Paintings by artist Miriam Hyman, who died in the July 7 London bombings, have been reproduced by an Oxfordshire firm and presented to police forces across the country.

Bosses at StarTraq contacted Ms Hyman's sister Esther, who lives in East Oxford, shortly after an exhibition of Miriam's work was displayed at the Town Hall last month.

After choosing a particular painting they arranged for prints to be made, which were framed and presented to representatives of 13 police forces from around the country - including Thames Valley, which has its headquarters at Kidlington.

Banbury-based StarTraq specialises in developing systems such as Automatic Number Plate Recognition.

The company works with police forces around the country to help track vehicles that might have been used in crimes such as the July 7 terror attacks.

StarTraq has donated the pictures to the forces it deals with. The work is seen as a lasting memorial to Miriam, 32, who was also known as Mim, a freelance picture researcher who painted and sketched in her spare time.

Miriam died when a bomb exploded on the bus she was on in London's Tavistock Square. Just minutes earlier, she had telephoned her father to tell him she was all right, having been evacuated from King's Cross Station.

Esther, 38, along with her parents John and Mavis, set up the Miriam Hyman Memorial Fund, which is looking to build and equip a paediatric eye hospital in Miriam's memory in Bhubaneswar, India. About £70,000 has been raised already.

Andrew Pearce, strategic director of StarTraq, said: "We knew about Miriam through mutual friends and we invited Esther to present the pictures to the forces.

"The proceeds have been put into Miriam's memorial fund and hopefully by being on display throughout the country, it will raise even more awareness of the cause."

Esther, who lives in Cowley Road, said: "The prints were framed beautifully. I was very touched by what the company have done and the reaction I had from the different police forces.

"Miriam would have been delighted to see her art displayed in this way."

Last month, about 30 pieces of art went on display at a special two-week exhibition at Oxford Town Hall.

It was only the second time the work had been shown in public, having made its debut at City Hall in London, on the first anniversary of the attacks.

Startraq chief executive Allan Freinkel said: "Miriam's greatest joy in life was giving pleasure to others and it is only fitting that we are able to do that through her artwork by presenting these prints to the police forces who work with us in reducing death on our roads."