Welcome to our latest Cell Site Analysis Expert John Tarpey BSc, BA, CEng, MIET


Footprint Investigations are delighted to welcome their latest cell site analysis expert John Tarpey to the team. John is very well known within the cell site analysis industry and has recently joined Footprint Investigations in the role of Cell Site Expert Witness. John brings with him an established reputation for ability, quality and reliability.
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Cell Site Analyst Vacancy

Senior Investigating Officers Course
Footprint Investigations have a vacancy for a full time Cell Site Analyst to join our dedicated team in our Redditch office.

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Happy 9th Birthday to The Cell Site Experts


Footprint Investigations have been established for 9 years this week. We have grown steadily and are still the largest independent dedicated cell site analysis supplier in the UK.
Our cell site experts have now prepared over 1000 reports for both prosecution and defence cases since the inception of Footprint Investigations. Read more

Cell Site Evidence in Nottingham


The cell site analysis experts at Footprint Investigations are delighted to have been asked to give a talk at 1 High Pavement Chambers in Nottingham. Technical Director and cell site expert Greg Robinson, along with Commercial Director Andy Townsend will deliver the update talk.
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Cell Site Of The Week – Kuala Lumpur

This picture was taken by one of our Analysts on a recent trip to Kuala Lumpur. K L Tower is the seventh tallest telecommunication tower in the world.

Cell Site Of The Week – Berkshire

A picture taken by one of our Cell Site Analysts on a recent trip to LEGOLAND in Windsor.

Cell Site Of The Week – Scotland

This picture was taken by one of our cell site analysis experts during a recent trip to Scotland. Cell sites on the Aberdeen coast have to be built to withstand the strong winds.

When Is An Expert Not An Expert?


I have worked exclusively as a cell site engineer and expert witness for almost 14 years. During this time, I have worked for many Police Forces and also many defence Solicitors and have completed in excess of 700 cell site reports. I have given evidence in many of the principal UK courts on numerous occasions. It is my background and qualifications in electronic engineering, along with working in the radio communications and mobile network engineering industries giving a combined experience of over 30 years, that provides ‘expert’ credentials. In response to recent publications and scrutiny regarding expert witness credentials, and from an increasing level of experiences in court situations, I would like to provide the following observations;
During the emerging years of cell site analysis, (the late 90’s and early 2000’s) there were just a few specialist companies offering the service. During my early years in this career, from 2005, I encountered several cell site experts from these companies in court on a regular basis. As it was a specialist role, there were not many of us and we frequently met with each other and were often invited into a conference room to discuss matters and provide areas of agreement. Each of the cell site experts I encountered were qualified engineers, with a background in radio communications and mobile telecommunications, mostly with 20-30 years’ experience in the industry.
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Chief Constables Commendation Awarded to Greg Robinson


Greg Robinson was awarded a certificate of commendation last night by Gareth Morgan, Chief Constable of Staffordshire Police. The award was presented for his contribution to the investigation into the murder of Staffordshire midwife Samantha Eastwood in July 2018. Greg was instructed to conduct urgent cell site analysis survey work during the missing person search, which turned into the largest murder enquiry dealt with by this police force in recent history.
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Expert Witness – Time to get it right

There was an article in The Law Society Gazette today following on from the recent collapse of the carbon credits fraud trial. The collapse of the case was due to disclosure issues and the fact that the ‘expert witness’ was found not to be qualified.

It is stated that experts will undergo intensive assessment from June 2019.
The issue of ‘expert witness’ is nothing new. In fact, most of the hard work has already been done, I will explain in due course. However, it is worrying that proposals may simply create a register of witnesses who have been through an ‘intensive assessment’.

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