On a legal visit to Her Majesty's Prison Chelmsford, I was faced by new security arrangements.

Nothing radical - the metal detectors and extra machines were just in different places.

I tossed the coins in my pocket into the obligatory plastic bowl sitting on top of the machine where they went 'splosh'.

The bowl contained a viscous liquid used to ink an infra-red rubber stamp for the wrist.

All my coins then had to be carefully washed in soapy water.

Do I have to report this as money laundering?

Peter Sheldon, Sheldons, Southend-on-Sea, Essex