Catherine Tweedy has been a forensic scientist since 1995, specialising in: fingerprint evidence cases, handwriting and signature cases. She has conducted research into the longevity of fingerprints on various surfaces in exposed environments. She also has a particular interest in examining the placement and orientation of fingerprints on surfaces and how this informs the action during which the fingerprint was made or an object handled. Interpreting fingerprint evidence at this higher level and going the extra ‘mile’ has helped differentiate between prosecution and defence accounts of events in numerous cases, and has led to many plaudits over a number of years, for example:
“I would like to commend Mrs Tweedy and her support staff for the outstanding work they have done in this case. There have been a number of difficulties; from legal aid funding to the complete disarray Mrs Tweedy found in the fingerprint bureau. Throughout all of this Mrs Tweedy and her support staff have provided what can only be described as an outstanding service. Counsel in this matter referred to Mrs Tweedy’s report as “the finest expert report he has ever received”.”
Solicitor, October 2012
“Mrs Tweedy went all out to have the report ready for trial (despite a very short timetable and missing exhibits).”
Solicitor, March 2014
We feel sure that without Mrs Tweedy’s efforts the result would not have been so positive.
Solicitor, April 2015
It was a pleasure working with Ms Tweedy. She was extremely professional, expert and helpful. It was not necessary for her to give evidence because the case was thrown out because of a document which she discovered when she considered the Garda file at our request. Please pass on my thanks.
Senior Counsel, April 2017
Mrs Tweedy can be contacted at our Durham office.