Serial killer West, who died in prison in 1995 aged 53, was previously suspected over her disappearance.
Gloucestershire Police said its Major Crime Investigation Team has deemed that further assessments are required at the cafe in order to determine whether an excavation is necessary, with officers expected to be at the scene for a number of weeks.
But who is Fred West and how is he connected to Herefordshire?
Along with his wife Rose, the couple tortured, raped and murdered an unknown number of women between 1967 and 1987, most at their home in Cromwell Street, Gloucester, which became known as the “House of Horrors”, with nine sets of bones found under the patio and cellar of the house.