"As part of the ongoing investigation in Amesbury, officers are required to enter the Boots store on Stonehenge Walk this morning. This is to collect some CCTV footage and forms part of the routine, ongoing enquiries. These officers are likely to be wearing protective equipment on a precautionary basis and the public should not be alarmed by this. The current advice from Public Health England is that the risk to the public remains low," the Wiltshire Police said on Twitter.
Rowley was released from the hospital on July 20, and put under police surveillance.
Police have previously said that Rowley visited the Boots pharmacy on Stonehenge Walk in Amesbury at around midday on June 30, the day the couple was poisoned. After being released from the hospital, Rowley said that Sturgess was poisoned with the "oily" substance, which she believed was a perfume.
London accused Moscow of the Salisbury attack, which has never been supported by concrete evidence and has been refuted by Moscow.