albert webb , 51 , and sons jimmy chuter , 26 , and jesse webb , 19 , followed people aged up to 97 home from the post office .
if the victim had no money on them , they would be driven to a nearby cash point to withdraw it , or the trio would con their way into their homes before stealing from them .
albert webb , 51 , from surrey , was jailed for three and a half years and son jimmy chuter , 26 , was jailed for four years after they harassed pensioners with dementia in the street .