A landmark cybercrime investigation that dismantled one of India's largest alleged digital arrest fraud networks has given rise to an unlikely outcome: a 403-page police-authored handbook on modern cybercrime. The Ahmedabad Cyber Crime Branch, which cracked the case in 2024 — arresting 17 accused, including four Taiwanese nationals — has now published 'Cyber Trails: Unmasking Digital Crimes', translating hard-won investigative lessons into a resource for both law enforcement and the public.

How the Investigation Sparked a Book

The digital arrest case drew national attention and was later referenced by Prime Minister Narendra Modi in an episode of 'Mann Ki Baat'. That spotlight prompted Ahmedabad Joint Commissioner of Police (Crime) Sharad Singhal and his colleagues to begin systematically documenting what they had learned — not just about the case, but about the broader evolution of transnational cybercrime.

'Nobody knows after two years how we detected the case, how we did the charge sheet, what tools were used and how criminals had access to the database. We should have more documentation,' Singhal said.

The result was unveiled last week alongside a companion volume, 'NDPS Investigation and Procedure (Ready Reckoner)', under the guidance of Gujarat Director General of Police and Ahmedabad Police Commissioner G.S. Malik. Deputy Chief Minister Harsh Sanghavi formally released both books.

What 'Cyber Trails' Covers

Co-authored with Deputy Commissioner of Police (Cyber Crime) Dr Lavina Sinha and Assistant Commissioner of Police Hardik Makadia, the book spans social media monitoring, digital forensics, cryptocurrency investigations, dark web activity, financial frauds, open-source intelligence (OSINT), mobile and cloud forensics, email investigations, and digital hygiene.

Crucially, the authors say the book is grounded in real cases rather than academic theory. 'This is the book in which we have case studies from real-time investigations. When we caught the gang and how we investigated, we included those learnings,' Singhal said. Cases were drawn from Ahmedabad as well as cybercrime units in other cities.

Notably, certain operational details were deliberately withheld. 'We have not put all the procedures in place — otherwise, criminals will read and know what our capabilities are,' Singhal explained.

Key Threats Documented — Including NEET Scams

The book dedicates substantial space to digital arrest scams, one of the fastest-growing categories of cyber fraud, which Singhal noted disproportionately target senior citizens through fear and deception. Other chapters examine cryptocurrency-based laundering, fake investment schemes, social media exploitation, and online financial frauds.

One case highlighted in the book involved fraudsters targeting parents of NEET-UG aspirants. Scammers falsely claimed on Telegram groups to possess question papers for a recently concluded re-examination, using fabricated success stories to extract payments ranging from ₹25,000 to ₹80,000 before disappearing. 'They did not have any paper with them, but they were showing on Telegram that they had a paper. Once payment is made, they wash out,' Singhal said.

The book also flags threats from fake profiles, spyware, and malicious APK files disguised as greeting cards or invitations. 'By just one click, you can lose your precious money in less than a minute,' he warned.

The NDPS Companion Volume

The second publication, 'NDPS Investigation and Procedure (Ready Reckoner)', co-authored with DCP (Special Operations Group) Rahul Tripathi, is designed as an operational guide for officers handling narcotics cases under the Narcotic Drugs and Psychotropic Substances Act. Singhal noted that NDPS investigations are procedure-intensive: 'NDPS Act specifies that there are 21 checklists which every investigating officer has to do for making a case.'

The volume includes judicial precedents, procedural checklists, and ready-to-use forms for actions such as freezing bank accounts, attaching properties, and filing court documents. A deliberate choice was to publish it in Gujarati, a language in which policing manuals are relatively scarce. 'A lot of books are available in English, but very few in Gujarati. We thought it better to publish it in Gujarati,' Singhal said.

A Year of Work — and a Broader Message

Both books took roughly a year to complete, with authors dividing chapters by expertise. Singhal personally handled digital forensics and cybercrime investigations; Dr Sinha contributed sections on social media monitoring and the dark web; Makadia focused on cryptocurrency. Singhal said he carved out at least four hours a week — typically late at night — to write and research.

For Singhal, the publications address a fundamental shift in crime patterns. 'Everybody is mastered in property offences and physical offences. But now cybercrime is increasing. We need trained staff in police stations,' he said. As digital threats continue to evolve, the authors hope the books will serve investigators and ordinary citizens alike — a rare instance of police casework becoming public knowledge.