Shortly before 4pm, officers at Bill Roache's home could be seen placing brown paper evidence bags inside an unmarked police car, which left the address shortly afterwards.
It was followed by two more unmarked police cars, each with three plain clothes officers inside.
More top news
Fine start to the week for most but turning wet and windy from Wednesday.
Thousands of people have lined the banks of the Mersey to see Cunard's three flagship ocean liners sail down the river.
Claims that surgeons used an old saw found in a cupboard to amputate a patient's leg are being investigated.