How Many Indecent Image Cases Get Dropped?

The subject of indecent image offences is deeply serious, and for those involved in an investigation, it can be both confusing and frightening. 


One of the questions we often ask at Eventum Legal is: how many indecent image cases get dropped, and why does this happen? The answer is more complex than it first appears, with statistics, legal processes, and personal circumstances all playing a role. 


In this article, we’ll explain the real numbers behind dropped cases, why so many don’t proceed, and what you should do if you or someone you care about is under investigation.


The Reality Behind Dropped Indecent Image Cases in the UK


If you’re facing an investigation or supporting someone who is, you might be surprised to learn just how many indecent image cases don’t make it to court or conviction. 


While news stories often focus on prosecutions and sentencing, the journey from police investigation to court is full of hurdles, and many cases never reach trial.


Official figures from the Crown Prosecution Service (CPS) and National Crime Agency (NCA) suggest that around 13% of indecent image cases are dropped before they reach court, often because the evidence isn’t strong enough to secure a conviction. 


In some years, less than half of prosecuted cases end in conviction, meaning many are discontinued at various stages. 


With the volume of referrals to police rising sharply in the last decade, more than 20,000 cases per year, understanding why so many are dropped is more important than ever.


What Does the Data Show?


How Many Cases Are Prosecuted Versus Dropped?


Finding one up-to-date percentage is challenging, as these figures are constantly shifting. However, the most recent reliable data suggests that in England and Wales, for every 100 reported and investigated indecent image cases, at least 10 to 15 will be dropped before a charging decision is even made. 


About half of those that go forward may not result in a conviction.


In 2020, for example, out of 4,762 prosecutions for indecent image offences, only 2,385 led to convictions. That means over 2,300 people saw their cases dropped, dismissed, or resulted in not guilty verdicts. This is a much higher “drop rate” than many expect due to a complex mix of legal and evidential challenges.


Conviction Rates and What They Mean


Conviction rates can be misleading at first glance. When you see that around half of prosecutions end in conviction, it’s easy to imagine the other half are all “let off.” 


In reality, many of these cases were discontinued because there wasn’t enough evidence, legal mistakes were made, or new facts came to light. 


Only a small proportion of cases go through a contested trial and end with a not guilty verdict; the CPS withdraws the majority before that point.


Why Are Indecent Image Cases Dropped?


Common Reasons Cases Collapse


There are several reasons why indecent image cases are dropped. The most common is insufficient evidence; forensic digital investigations are complex, and sometimes it’s impossible to prove who accessed or controlled the images. Devices may be shared, compromised by viruses, or contain unknowingly downloaded files.


Legal process errors are another major cause. If police or investigators don’t follow strict procedures for searching devices, obtaining warrants, or handling evidence, that evidence can be excluded from court. This is more common than many realise, meaning the CPS often has no choice but to drop the case.


Defence evidence can also change the direction of a case. If a person can show that images were downloaded without their knowledge (for example, as part of a large group chat or from an automatic sync), or if they had a legitimate reason to possess the material (such as law enforcement or academic research), the prosecution may decide not to proceed.


The Role of Evidence and Legal Process


To secure a conviction, the prosecution must prove beyond a reasonable doubt that the accused both possessed and knew about the indecent images. If the evidence doesn’t clearly show this or was obtained in a way that breaches rights or protocols, it cannot be used. 


Defence lawyers will look carefully for any signs that police overstepped, made procedural errors, or failed to follow the law, and can use these issues to have cases dropped, and undermine the credibility of evidence.


Sometimes, the CPS also decides not to continue a case on “public interest” grounds. If there is very little likelihood of conviction or the circumstances are highly unusual, they may decide that pursuing the case is not a good use of resources.


New Challenges in a Digital World


The Rise in Referrals and Investigations


The explosion of digital technology means more indecent image cases than ever before. The National Crime Agency has reported more than 20,000 referrals yearly, double what police saw four years ago. 


With so many devices, cloud services, and messaging apps in play, it’s never been harder to work out exactly what happened, who is responsible, or how an image got onto a device.


How Technology and Defence Tactics Affect Outcomes


Our defence team, working alongside forensic experts, are increasingly skilled at highlighting technical problems: for example, showing that automatic downloads, cloud syncing, or viruses can put indecent images onto someone’s device without their knowledge. We also understand the technicalities around peer-to-peer software and the issues that can arise when using this. 


There’s also a growing focus on “making” rather than just possessing images, meaning someone could face charges for downloading, saving, or viewing an image if the device automatically stores it. In some cases, an image may have been deleted by the user, but the file path created by the computer in the background can be recovered, which again could lead to a charge of making. 


But the digital forensic complexities that these cases can bring can often result in cases being dropped or not charged at all.


Real Life Scenarios: When and Why Cases Are Discontinued


Consider the case of a young man whose phone automatically downloaded images from a WhatsApp group he never opened. 


Forensic experts showed he didn’t access the files or even know they were there. In another situation, a person’s computer was found to be infected with malware that downloaded indecent images without their knowledge. 


These real-world scenarios resulted in discontinued cases because the evidence simply couldn’t prove intent or knowledge.


What To Do If You Are Under Investigation


If you are being investigated for an indecent image offence, the most important thing to do is to get legal advice as early as possible. Do not answer police questions without representation. 


You have the right to legal advice and to know the evidence against you. Experienced solicitors can spot flaws in the case, challenge improper evidence, and protect your rights throughout the process. 


Remember, being investigated does not mean you will be charged or convicted.


How Eventum Legal Can Help


At Eventum Legal, we understand how daunting and stressful an indecent image allegation can be. Our team combines legal expertise with a practical and human approach. We work with some of the country’s leading experts to analyse digital evidence in detail, challenge mistakes, and fight for our clients at every stage. 


Whether your case is dropped or goes to trial, we are here to explain your options, defend your rights, and support you and your loved ones through a difficult time.


If you need help or confidential advice, contact us for a no-obligation conversation about your situation.


Frequently Asked Questions About Indecent Image Cases


How many indecent image cases are dropped in the UK?


Current estimates suggest that at least 13% of cases are dropped before charge, and up to half of prosecuted cases don’t result in conviction.


Why do cases get dropped?


Most are dropped due to weak evidence, legal errors, or successful defence arguments about intent and knowledge.


What should I do if I’m being investigated?


Get legal advice immediately, don’t answer police questions alone, and make sure your rights are protected.


How can Eventum Legal help?


We provide expert advice, analyse the digital evidence, challenge unlawful searches, and represent you through every stage.

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