
Have you ever wondered what it’s like to help crack a major investigation or achieve that critical breakthrough? This week, as part of our A Day in the Life series, we turn the spotlight on the National Crime Agency (NCA), an organisation that as well as leading the UK’s fight against serious organised crime, provides specialist expertise and vital support to frontline policing.
Today, we delve into the fascinating role of David Liddle, a manager in the NCA’s Major Crime Investigation Support unit. With his team, David plays a key part in supporting victims of devastating crimes and helping bring offenders to justice. Having had the privilege of working with David as a National Senior Investigating Officer Advisor, I’ve witnessed first-hand the exceptional dedication, expertise, and impact of his team.
Let’s hear directly from David as he takes us through a day in his life…
Can you tell us a little about your role at the NCA?
I’m a manager in Major Crime Investigative Support, which assists police forces when they have cases requiring specialist input.

My team is the first point of contact for police officers. We handle large numbers of requests seeking advice on investigations into murders, rapes, abductions, missing people and more.
It’s our role to provide support, drawing on our own experience as investigators and connecting forces with a large network of forensic experts.

These experts work outside the NCA but we can call upon them to provide expert opinion on a broad range of sometimes niche topics – everything from fires to psychiatry and wildlife to forensic linguistics, which involves analysing written language through text and WhatsApp messaging from digital devices.
Can you tell us a bit about your background and what inspired you to become a Crime Team Manager at the NCA?
I joined Cambridgeshire Constabulary in 1992, after serving in the Royal Air force.
While I am not university educated, I was fortunate to have a very supportive family, including a father who mentored me through the early years of my police career.

My varied and successful career in policing culminated in me joining the Bedfordshire, Cambridgeshire and Hertfordshire Major Crime Unit in 2011, where I managed teams investigating murders and serious sexual assaults.
In 2013, when the NCA was formed, I spotted a vacancy in its Major Crime Investigation Support unit, which I saw as an excellent opportunity to grow my investigative knowledge and share experiences with colleagues across law enforcement.
I got the job and haven’t looked back since.
How does your day start? (do you have a favourite breakfast?)

I’m an early riser – my alarm goes off at 5:15am. I head off to the gym because I enjoy the buzz of intensive exercise; it sets me up for the day.
My wife attends the gym with me, although she is far more disciplined than I! It allows us to spend some time together before we head off to work.
In support of a healthy lifestyle, I also follow the 16/8 intermittent fasting diet, so I don’t normally eat until midday. Poached eggs are my staple start to the day.
What does a typical day involve?
Much of my day involves managing staff to ensure we get the job done, while also ensuring their welfare is taken care of. My team often have to provide time-critical advice on some very challenging and emotionally difficult cases.
One of my favourite parts of the day is when I use my own experience and that of the experts I know to help police officers.
What aspects of your job do you find most rewarding?

I’ve always enjoyed the problem-solving aspect of policing. In my current role I get to help detectives with their challenges, to enhance their evidential opportunities and ultimately help them bring some of the most serious offenders to justice.
I believe victims should be at the forefront of everything law enforcement does and I help achieve this by sharing the learning and best practice with officers across the country. The positive feedback I receive for this is extremely rewarding.
I also enjoy hearing about the successes from the team of interview specialists I manage, whose work entails interviewing vulnerable victims and witnesses in a way that is sensitive to their individual needs and experiences, but ensures they get the evidence required to help secure justice for them.
What would success in your role look like for you?

Success to me is driving up the standards of criminal investigations across the UK by supporting colleagues in police forces and ensuring I stay on top of my own professional development every year.
Success is also about helping my team members grow both in experience and confidence by providing inspiration, direction and encouragement.
What do you see as the main benefits of a university education for police officers and what do you think the educational priorities are?
Balancing a career and education can be challenging, but university education offers police officers an excellent foundation on which to build their careers. It can support deeper critical thinking and enhance decision making.
And lastly, what do you do for fun?
It’s not all work for me! I enjoy playing golf with friends, although maintaining a single-figure handicap is becoming increasing difficult as I get older.

I also enjoy spending time with my growing family, supporting my children and grandchildren where I can. I’m immensely proud of their achievements and I get great satisfaction from hearing about their successes.
I’m also a mentor for young people seeking a career in policing. To date I have supported 11 young people in their endeavours to become police officers and I enjoy hearing about their successes as the years go by. You don’t have to be a police officer to become a National Crime Agency officer. Find out more about the wide range of roles at the National Crime Agency at www.nationalcrimeagency.gov.uk/careers
Editorial Team
Paul Williamson (Editor-in-Chief); Claudia McCready (Lecturer); Claire Bowers (Senior Lecturer); Eve Smietanko (Joint Programme Leader & Senior Lecturer); Ian Lowe (Senior Lecturer) & Micah Hassell (Senior Lecturer).

If you would like to be a guest blogger, please contact Police.Blog@uwe.ac.uk






























