http://www.nats-uk.ead-it.com/aip/current/ad/EGCC/EG_AD_2_EGCC_en.pdf

Pertinent section is right at the top of page 12:

“Unless otherwise required by ATC, Runway 23R/23L shall be used for all movements when there is a head wind component and when a tail wind component is not greater than 5 kt on either runway”

Andy