High Quality Content by WIKIPEDIA articles! The Metric Martyrs are a British advocacy group based in the United Kingdom who campaign for the freedom to choose what units of measurement are presented. The group states that it believes that vendors should have the freedom to mark their goods with any units they choose. This can be solely imperial units, solely metric units or both. Newspapers dubbed the group the `metric martyrs` after Chris Howell, then weights and measures spokesman for the Institute of Trading Standards Administration, said that they could martyr themselves if they wanted to.