Getting criminals to confess... With color

Well since I'm on a crime spree...I'm going to hit the Times Online from England.
"NERVOUS suspects locked up in Britain's newest police station may be reassured by a pleasant shade of yellow on the door. If they are close to confessing a crime, the blue on the wall might tip the balance."
"Ystrad Mynach station, which recently opened at a cost of £5 million, has four cells with glass doors for prisoners who suffer from claustrophobia. Designers have painted the frames yellow, which researchers say is a calming colour. Other cells contain a royal blue line because psychologists believe that the colour is likely to encourage truthfulness."
Ok this falls under the... I think I need to see the research to even consider taking this seriously.
"Ingrid Collins, a psychologist who specialises in the effects of colour, said that colour was an "energy force". She said: "Blue does enhance communication but I am not sure it would enhance truthful communication." Yellow, she said, affected the mind. Red, on the other hand, should never be considered because it could increase aggression."