I was a Bloods member, and now I broker peace between warring LA gangs — here's what I learned
Skipp Townsend was a member of the Rollin' 20s Avenue faction of the Bloods gang in Los Angeles for 27 years.
Nazar Risafi
Producer, Development
I was a Crips member, then became a cop — here's what I learned about gangs
Tyrone White was a member of the 65 Menlo Gangster faction of the Crips gang in South Central Los Angeles during the late '80s and '90s.
How scam call centers work, according to a 'scambaiter'
Jim Browning is a software engineer who gains access to scammers' computers and CCTVs by hacking into their networks.
How home invasions work, according to a former burglar
Stephen Gillen was the leader of a burglary gang targeting high-value properties, such as jewelry stores and designer-brand warehouses.
How narcotics labs work, according to a former crystal meth dealer
Since leaving the crystal meth dealing trade, Jaffe wrote "The Abstinence Myth" and founded the IGNTD Hero Program.
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How diamond heists actually work, according to a former jewel thief
Bryan Sobolewski was a diamond thief and committed a string of armed robberies and break-ins around New England in the early '90s.
A detective explains how serial killer investigations actually work
Williams-Thomas is the author of "Hunting Killers" and has starred in television programs and crime series reinvestigating murders and violent crimes.
How firearms smuggling actually works, according to a weapons specialist
Ed Calderon was a police officer in Baja California, Mexico for 12 years, working in counter-narcotics and organized-crime units.
I was assaulted by a Met Police officer at 14, I now train them. Here's how police racism works
Sayce Holmes-Lewis has been stopped and searched over 30 times by the UK Police. He speaks to Insider about his experiences of racism within policing.
How police corruption actually works in the UK
Alastair Morgan, whose brother was murdered in 1987, and Neil Woods who investigates corruption, speak to Insider about how police corruption works.
How heroin trafficking actually works
David McMillan is a former heroin smuggler. He speaks to Insider about how he trafficked up to $17 million dollars of the drug.
Former Mafia member explains all the ways the New York mob makes its money
Former New York Mafia made member John Pennisi speaks to Insider about all the ways the mob make their money.
Former made Mafia member explains how the New York mob actually works
Former New York Mafia made member John Pennisi speaks to insider about how the mafia actually works.
How I trafficked over $6.6 million worth of Cocaine internationally
Pieter Tritton smuggled over $6.5 million worth of cocaine internationally, before being jailed in Ecuador.
I made over $650,000 forging art between the 1960s and 1980s — here's how I did it
Max Brandrett forged over 500 paintings of artists such as Samuel Palmer and Louis Wain making him over $650,000.
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I robbed over 100 banks before handing myself in — here's how I did it and why it couldn't be done now
Cain Vincent Dyer robbed over 100 banks across California between 1999 and 2001 before handing himself in to authorities.
I infiltrated the UK's most dangerous drug gangs — here's what I learned about drug crime
Neil Woods spent 14 years as an undercover police officer infiltrating some of the most dangerous organized crime groups in the UK.