Background
On September 10, 1973, the Provisional IRA bombed Euston Station in London. On February 3, 1974 a further bomb destroyed a bus on the M62 motorway killing 12 soldiers and family members. The National Defence College in Latimer, Buckinghamshire was bombed on February 12, 1974.
Ward was arrested on 14 February 1974 and on 4th November was convicted of all three bombings.

Appeal
One of the main pieces of forensic evidence against Judith Ward was the alleged presence of traces of nitroglycerine on her hands, in her caravan and in her bag.
Thin layer chromatography and the Griess test were used to establish the presence of nitroglycerine. However, later evidence showed that positive results using these methods could be obtained with materials innocently picked up from shoe polish, and that several of the forensic scientists involved had either withheld evidence or exaggerated its importance.
This was one of a series of miscarriages of justice during the latter half of the 20th Century.