Behavioral Detective

Chris Lengquist

Everyone's hiding something. After nine years as a Washington DC process server and private investigator, I got pretty good at finding it. Now I'm writing everything down: true stories, crime fiction, and everything in between. The Behavioral Detective. True(ish) stories on Sundays. Fiction on Wednesdays. Give it one episode. Just one.  True crime adjacent with a real estate bent.

Episodes

  1. 1D AGO

    Joan Jett and BBQ. John Riggins in an Elevator. Meeting DC Celebrities.

    Expect the unexpected. In this special episode of the Behavioral Detective, Chris Lengquist shares what happens when a life in investigation collides with cultural icons out of left field. Step back into Washington, DC in the late 1980s for two completely different celebrity encounters. First, a high-stakes lesson in behavioral architecture and power dynamics on K Street with legendary Super Bowl MVP John Riggins. Then, a lesson in raw, comfortable baseline energy while slingin' pork from a barbecue catering trailer for rock icon Joan Jett at American University. Finally, Chris previews his upcoming fiction debut, Notice of Assignment, introducing listener favorite Cal Brink—a DC private investigator turned real estate agent who finds out what happens when a ghost from the past turns a simple property closing into a 1,080-mile chase for survival. Connect with the Inner Circle: Read more stories: ProcessServerChronicles.com Join the community: Behavioral Detective on Facebook  Advance Reader Copies: CalBrink.com Disclaimer: This production is for entertainment purposes only and does not constitute legal or professional advice. Names and details have been altered for privacy.

    10 min

  2. 5D AGO

    Charlie Had a Dinosaur (continued): Chapters 3, 4 and 5

    The Underground Offer: Kojak, Quick Cash, and a $50 Contract Chapters 1 & 2 were published on May 13, 2026 The exit ramp from a predictable 9-to-5 rarely looks like a corporate ladder. Sometimes, it looks like a dive bar and a stack of legal papers. Following a chaotic Wednesday night delivery shift, Cal is back at the Ford dealership, up-selling wiper blades and dreaming of a way out of the 15-hour-day grind. But Tommy—the mysterious private investigator who masterfully controls parking lots—isn't done with him yet. Armed with a quarter for a pay phone and an offer Cal can't refuse, Tommy lures him to a local dive called The Underground to change his trajectory forever. Cal quickly learns that his instinctual coolness under pressure isn't just luck—it’s a rare gift. But as he stands on the edge of a new career tracking infidelity, fraud, and the dark side of human behavior, he faces a high-stakes lesson in what it truly means to navigate a new marriage as a team. In this episode, you’ll hear: The Gold Volvo Signals: How a Montgomery County PI blends into the background of 1980s suburban Maryland.The Reality of the Mission: The truth behind the three-year-old child from the previous night, and why it wasn't a game.The First Assignment: How a $50 bill became an employment contract, and the immediate twist waiting at the bar.The Real Danger Zone: Why making a major career pivot without consulting your new bride is the riskiest move of all.Key Quote: "Tommy said I have a gift. I’m intrigued. More than that, I’m excited. So, I made a decision." Follow the Journey: Subscribe now to follow the Cal Brink. Next week: Cal vs The Appraiser, A real estate fraud story that is less fiction than you think.  New episodes release every Wednesday.

    16 min

  3. MAY 17

    The Bag Phone: Low Tech Tracking in a High Stakes Serve - Case File #022

    Before GPS and smartphones, process serving was a game of quarters, paper maps, and pure imagination. It’s late 1988, and I'm staring down a "rush" subpoena with no apartment number, no vehicle description, and a deadline that could sink a defendant’s case. With the clock ticking and the Washington, DC rush hour traffic working against me, I had to get creative. In this episode, we revisit the era of the "Bag Phone"—a $2,500 piece of cutting-edge tech that was more prestige than utility. You’ll hear how I borrowed my boss's prized Motorola bag phone, turned an apartment hallway into a high-stakes game of "Hot or Cold," and used a ringing phone to smoke out a subject who didn't want what I had to offer. In this episode, you’ll hear: The Beltway Battle: Navigating the nightmare of Tyson’s Corner traffic in the 1980s.The Pay Phone Vigil: Why every process server in the 80s carried a console full of quarters.The Bag Phone Gambit: How I used a 10-pound mobile phone to identify a target through a closed door.Creating Stress: The psychological tactic of the "simultaneous ring and knock" to force a service.Author’s Reflection: This is a story on patience. From memorizing ADC map books to waiting by pay phones at strip shopping centers, find out what it took to be a "Behavioral Detective" before the world was at our fingertips. Question for the Listeners: How would you have found Apartment 206 without a cell phone? Would you have the patience to wait by a pay phone for a call back? New episodes of the Behavioral Detective Podcast drop every Wednesday and Sunday. Wednesdays are for Cal Brink Files fiction. Sundays are for true(ish) stories of my investigator and process server past.

    12 min

  4. MAY 13

    Charlie Had a Dinosaur : Chatpers 1 & 2

    Sometimes, the best career opportunities don’t come from a job board. They come from a dark parking lot at 10:00 PM. In this episode, we meet Cal, a pizza delivery driver just trying to make ends meet for his new wife. A Wednesday night shift takes a dangerous turn when a botched robbery attempt leads to a chance encounter with a mysterious man named Tommy. Cal quickly learns that his ability to handle pressure and talk his way through a door is worth a lot more than a one-dollar delivery tip. From disarming a nervous gunman to using a "free pizza" to confirm a child's location, this is the story of how a routine delivery turned into a high-stakes introduction to a whole new world. In this episode, you’ll hear: The Anatomy of a Robbery: Why a "Generic Pizza Company" sign is a magnet for trouble.The 1986 Side-Hustle: Making $50 in five minutes when your salary is only $23k.The Art of the Entry: How a three-year-old and a plastic dinosaur became the key to a successful mission.Meeting Tommy: The mysterious man in the shadows who sees potential in Cal’s quick thinking.Key Quote: "I really didn’t have time for this, and I was tired after working all day and I wanted to be home with my new wife." Follow the Journey: If you enjoyed this chapter, make sure to subscribe so you don’t miss what happens next when Cal decides to see just how deep this rabbit hole goes. New episodes release every Wednesday.

    11 min

  5. MAY 9

    He Had a Badge. I Had an Attitude. - Case File #034

    He Had a Badge, I Had an Attitude Case File #034 PARENTAL NOTE: This episode has adult language. Twenty minutes. That's how long a Prince George's County police officer made me wait behind bullet-proof glass while he ate his lunch. Slowly. Deliberately. Making eye contact every few bites. When I finally served him the subpoena, I might've muttered something under my breath on my way out. Or maybe I just thought it. Either way, he heard about it. What happened next? A parking lot confrontation. A 6'2", 240-pound cop standing over me, demanding to know if I called him an a*****e. Me, 5'7" and stubborn, with a choice to make: apologize or double down. Spoiler: I doubled down. This is the story of petty power moves, onion breath, and why sometimes the only thing standing between you and an arrest is a sergeant with stripes who's seen enough. Connect with the Inner Circle: Read more stories: ProcessServerChronicles.comJoin the community: Detective's Lounge Facebook GroupComing This Fall: Notice of Assignment, the first Cal Brink novella.Disclaimer: This production is for entertainment purposes only and does not constitute legal or professional advice. Names and details have been altered for privacy.

    8 min

  6. MAY 8

    Traci Brown: Body Language Expert Interview

    Decoding Deception with Traci Brown Can you spot a lie before the first word is even spoken? In this episode of the Behavioral Detective, Chris dives into "Street Science" with Traci Brown, the world’s #3 body language expert.  From her time on the U.S. National Cycling Team to training with FBI and law enforcement professionals, Traci reveals how high-stakes pressure exposes hidden "tells". Learn why body language doesn't scream—it leaks—and how to monitor stress indicators like blink rates and cognitive overload to protect your bottom line. Whether you are investigating fraud or navigating a boardroom, discover why you must "pay attention or pay with pain".  Connect with the Inner Circle: Read more stories: ProcessServerChronicles.com Join the community: Detective’s Lounge Facebook Group Coming This Fall: Notice of Assignment, the first Cal Brink novella. Disclaimer: This production is for entertainment purposes only and does not constitute legal or professional advice. Names and details have been altered for privacy.

    32 min

  7. MAY 3

    Professional Stalker

    My name is Chris Lengquist. I spent nine years as a process server and private investigator in Washington, DC, Maryland and Virginia. From 1987 to 1995, I knocked on doors people didn't want knocked on, followed people who didn't want to be followed, and documented things people desperately wanted kept quiet. Then I moved to Kansas City, picked up a real estate license, and spent the next twenty-five years doing essentially the same thing: reading people, finding the truth buried underneath what they were telling me, and trying to do right by my clients. I've been telling these stories to friends for thirty years. They kept saying, "Write it down." I finally did. This is the Behavioral Detective. True stories from my investigative past, and fiction close enough to real life to make you wonder. Don't worry, I'll let you know which is which.  Connect with the Inner Circle: Read more stories: ProcessServerChronicles.comJoin the community: Detective’s Lounge Facebook GroupComing This Fall: Notice of Assignment, the first Cal Brink novella.Disclaimer: This production is for entertainment purposes only and does not constitute legal or professional advice. Names and details have been altered for privacy.

    8 min

  8. MAY 2

    Case File #001: From Chicken Grease to Process Serving

    The legal world is full of high stakes, but for Chris, it started with the smell of fried chicken and a leap of faith. In this debut episode of The Behavioral Detective, Chris takes us back to late 1986, the moment a chance encounter at a Roy Rogers restaurant changed his life forever. Stuck in a dead-end management job and struggling to make ends meet as a newlywed, Chris was offered an "easy" side hustle by a regular customer named Tommy: delivering legal papers for $35 a pop. What started as a one-night mission to earn extra cash quickly turned into a career-defining realization. By the time Chris served his third set of papers, he knew he wasn't just delivering documents, he was discovering a world of tradecraft, human behavior, and professional freedom. In this episode, you’ll hear: The gritty reality of working fast food in 1980s Maryland.How a Montgomery County Sheriff’s Deputy opened the door to the world of private investigation.The tension of the "stakeout" and the serendipity of the perfect serve.The moment Chris walked into his "safe" 9-to-5 and gave his two weeks' notice.Question of the week: What was the boldest career move you ever made? Was it worth the grease? Connect with the Inner Circle: Read more stories: ProcessServerChronicles.comJoin the community: Detective’s Lounge Facebook GroupComing This Fall: Notice of Assignment, the first Cal Brink novella.Disclaimer: This production is for entertainment purposes only and does not constitute legal or professional advice. Names and details have been altered for privacy.

    9 min
  • 8 Episodes

About

Everyone's hiding something. After nine years as a Washington DC process server and private investigator, I got pretty good at finding it. Now I'm writing everything down: true stories, crime fiction, and everything in between. The Behavioral Detective. True(ish) stories on Sundays. Fiction on Wednesdays. Give it one episode. Just one.  True crime adjacent with a real estate bent.

Information

  • Creator
    Chris Lengquist
  • Years Active
    2K
  • Episodes
    8
  • Rating
    Explicit
  • Copyright
    © 2026 Chris Writes, LLC
  • Show Website
    Behavioral Detective