Nazanin Zaghari-Ratcliffe, who was detained by Iranian authorities in April 2016 and held in a political prison for nearly six years, has spoken publicly about the role that sewing played in sustaining her sense of identity and purpose during her incarceration. Speaking at the Hay Festival in Hay-on-Wye on Thursday, she described how obtaining permission to receive fabrics from outside was a process that required special written authorisation, and how her husband Richard undertook considerable effort to ensure that consignments reached her inside the facility. It is understood that Zaghari-Ratcliffe had previously accumulated a collection of Liberty London fabrics that she had considered too precious to use, a reluctance she now regards as having been entirely overcome by the circumstances of her imprisonment. She told the audience that the Liberty name carried a particular resonance in a place where liberty itself had been stripped away, and that distributing the fabric among fellow inmates became a means of sharing something that reached beyond the merely material. The charity worker, who was widely regarded as having been used as a diplomatic pawn by Tehran in its negotiations with London, noted that crafting activities were also made available as part of a broader rehabilitation programme within the prison. A teacher is said to have assisted her in constructing a dress pattern, and she went on to make clothes for her daughter Gabriella as well as neckerchiefs for the other women held alongside her.…