The robberies took place yesterday (Sunday, March 29).
The theft took place this week.
The incident happened on March 7.
There have been a spate of these types of thefts over the last month.
Police believe items could have been stolen in Norfolk or Suffolk.
A woman in her 80s received a call from a man claiming to be a police officer.
He was sentenced at Basildon Crown Court yesterday (January 30).
The chocolate covered marshmallows were found in Thorndon.
CCTV images showing Osman Salimov and Salim Baranov were circulated by police and media after the theft.
Lee Fitzgerald was last seen on January 9.
It relates to the cash stolen from a pensioner in Diss.