Season
Episode
Player server
CSI: Crime Scene Investigation

CSI: Crime Scene Investigation

20008
DramaCrimeMystery
Released
Oct 06, 2000
Country
United States
Productions
Alliance AtlantisCBS ProductionsCBS Studios
A Las Vegas team of forensic investigators are trained to solve criminal cases by scouring the crime scene, collecting irrefutable evidence and finding the missing pieces that solve the mystery.

About

Quick guide

CSI: Crime Scene Investigation is a long‑running procedural that follows a team of Las Vegas forensic investigators.

Debuting in 2000, the series chronicles the work of the Las Vegas Police Department’s Crime Scene Investigation unit as they gather evidence from murders, robberies and other violent crimes. The original lineup—Gil Grissom, Catherine Willows, Nick Stokes, Warrick Brown, Jim Brass and Greg Sanders—combines scientific expertise with on‑scene drama. Over 15 seasons the show evolved through shifts in leadership, new characters and a blend of procedural and character storytelling, culminating in a two‑hour series finale. It has spawned several spin‑offs and left a lasting legacy on the crime‑drama genre.

What to know

  • Original cast: William Petersen, Marg Helgenberger, George Eads, Gary Dourdan, Jorja Fox, Paul Guilfoyle, Eric Szmanda.
  • Aired on CBS from 2000 to 2015, totaling 15 seasons and 337 episodes.
  • Set in Las Vegas, the team works for the LVPD Crime Lab and investigates murders, homicides, and other violent crimes.
  • Key characters include forensic entomologist Gil Grissom, blood‑spatter specialist Catherine Willows, and investigative lead Nick Stokes.
  • The series features recurring themes such as forensic science, legal procedure, and personal relationships among team members.
  • The show is known for its emphasis on evidence, detailed crime‑scene analysis, and dramatic resolution.
  • The final episode, "Immortality," was a two‑hour event that wrapped the storylines of Grissom, Willows, and others.
  • The franchise has inspired spin‑offs: CSI: Miami, CSI: NY, CSI: Cyber, and CSI: Vegas.

Watch if

If you enjoy crime procedurals that blend forensic science with character arcs, appreciate a team‑driven narrative set in a vibrant city, and like shows that balance procedural details with emotional stakes, CSI is worth watching.

Skip if

If you prefer lighter, less graphic dramas, or dislike shows with extensive forensic detail, dramatic tension, or a focus on crime scenes, this series may not be for you.

crime violencedark tonedialogue heavyinvestigation heavylanguage strongmature themespsychological elementssuspensefulsome gore
Show Premise
CSI follows the work of the Las Vegas Police Department’s Crime Scene Investigation unit as they collect and analyze physical evidence to solve violent crimes. The series blends scientific methods with on‑scene narrative, showcasing how forensic technology advances the pursuit of justice.
Original Cast
The core team introduced in 2000 consisted of forensic entomologist Gil Grissom (William Petersen), blood‑spatter analyst Catherine Willows (Marg Helgenberger), CSI level III Nick Stokes (George Eads), audio‑video analyst Warrick Brown (Gary Dourdan), homicide captain Jim Brass (Paul Guilfoyle), and DNA specialist Greg Sanders (Eric Szmanda). Their interactions formed the series’ foundation.
Character Evolutions
Throughout the 15 seasons, key figures left, returned, or shifted roles. Grissom departed in season nine to pursue a new career, Willows was promoted and then left for the FBI, and new leaders such as D.B. Russell and Sara Sidle were introduced, reflecting the show’s evolving team dynamics.
Procedural Style
Each episode presents a new case, beginning with a crime scene and following the team as they gather physical evidence, interview witnesses, and reconstruct the event. The narrative often emphasizes the importance of meticulous evidence handling and scientific validation.
Recurring Themes
The series examines the relationship between law and science, the human cost of crime, and the personal lives of investigators. It frequently tackles ethical dilemmas, such as the use of evidence, the impact of forensic findings on trial outcomes, and the team's coping mechanisms.
Series Finale
"Immortality" (2015) was a two‑hour event that concluded the main story arcs, addressing unresolved plot threads, and providing closure for long‑time characters while setting the stage for the franchise’s future spin‑offs.

FAQ

71 Q&A
How does CSI handle digital forensics?
CSI uses computers and digital devices found at crime scenes to find clues.
What are some common misconceptions about CSI work?
People think CSI always finds clues quickly, but it takes time.
What are the biggest challenges faced by CSI investigators?
CSIs face challenges like contaminated evidence and difficult crime scenes.
What are some of the most memorable cases from CSI?
Memorable cases often involve complex puzzles and surprising twists.
How does DNA evidence work in CSI?
DNA evidence in CSI comes from small samples like hair or blood to identify people.
What happens to evidence after it is collected by CSI?
Collected evidence is carefully stored and analyzed in a lab.
What is the role of the medical examiner in CSI?
The medical examiner determines the cause and time of death.
How are witness statements handled in relation to CSI findings?
Witness statements are compared with the evidence found at the scene.
What does a CSI do when they arrive at a crime scene?
CSIs carefully look for clues and protect the scene from contamination.
What is toxicology and how is it used in CSI?
Toxicology studies poisons and drugs in the body to see if they played a role.
What is the significance of the 'chain of custody' in CSI?
The chain of custody tracks evidence to make sure it is not changed.
What is the main premise of CSI: Crime Scene Investigation?
CSI follows a team that uses science to solve crimes.
How is ballistics evidence handled on CSI?
Ballistics examines bullets and firearms to link them to a crime.
Who are the main characters in CSI: Crime Scene Investigation?
The main characters are the scientists who investigate crime scenes.
How does CSI reconstruct a crime scene?
CSIs use evidence to figure out what happened at the crime scene.
How are fingerprints analyzed in CSI?
Fingerprints are lifted from surfaces and compared to databases.
How do CSIs ensure the integrity of a crime scene?
CSIs secure the scene and wear protective gear to avoid contamination.
What is trace evidence and why is it important in CSI?
Trace evidence includes small items like fibers or hairs that can link people to a crime.
How does CSI process a crime scene?
CSIs systematically search for, document, and collect evidence.
Are the methods shown on CSI realistic?
Some methods on CSI are dramatized for TV, but many are based on real science.
What kind of scientific techniques are used in CSI?
CSI uses techniques like DNA analysis, fingerprinting, and ballistics.
How are time of death estimates determined in CSI?
Time of death is estimated using body temperature and other clues.
How does CSI deal with evidence that might be contaminated?
CSIs take steps to prevent contamination and identify if it has occurred.
What are the different roles of the CSI team members?
Team members have roles like crime scene technician, lab analyst, and supervisor.
How does the science in CSI compare to real-life forensic science?
Real forensic science is often slower and less dramatic than shown on CSI.
Were there any real-life investigators who inspired the CSI characters?
While the characters are fictional, the show aimed to be realistic by consulting with real forensic scientists to make the procedures seem authentic.
How did Catherine Willows evolve throughout the series?
Catherine started as a skilled yet sometimes reckless investigator. Over time, she matured, became a leader, and faced personal challenges, eventually taking on a new role.
What are the different types of forensic evidence CSI looks for?
CSI teams look for many types of evidence, including fingerprints, DNA, ballistics, trace evidence like fibers or hairs, and digital evidence.
How did the series finale of CSI conclude the story arcs?
The finale brought back old characters and resolved major plotlines, including a courtroom battle that tested the team and provided closure.
What is the relationship dynamic between the main CSI characters?
The main characters had strong bonds, often like family, supporting each other through difficult cases and personal lives.
What are some notable guest stars who appeared on CSI?
Many famous actors guest-starred, including William Petersen's former co-star from 'To Live and Die in L.A.', William Petersen himself, and others like Marg Helgenberger and Gary Dourdan.
How did the spin-off series (Miami, NY, etc.) relate to the original?
The spin-offs shared a similar format and premise but were set in different cities and often featured standalone cases, though occasional crossovers occurred.
What are the key personality traits of Gil Grissom?
Gil Grissom was known for his sharp intellect, dedication to science, meticulous attention to detail, and a sometimes stoic demeanor.
When did CSI: Crime Scene Investigation first air?
CSI: Crime Scene Investigation first aired on October 6, 2000.
What was the overall message or theme of CSI?
The show's main message was that science and careful investigation can reveal the truth, no matter how hidden.
How does CSI use technology to solve crimes?
CSI heavily features advanced technology, like DNA sequencing, microscopic analysis, and digital forensics, to identify criminals and reconstruct crime scenes.
How does CSI deal with cases involving complex poisons or drugs?
The show often depicted specialized lab work to identify unknown substances, using toxicology reports and chemical analysis to solve poisonings and drug-related crimes.
How many seasons did CSI: Crime Scene Investigation run for?
CSI: Crime Scene Investigation ran for 15 seasons.
What are Sara Sidle's strengths and weaknesses?
Sara's strengths included her sharp mind and dedication to cases. Her weaknesses sometimes involved her emotional reactions and personal connections to victims.
What happened in the final episode of CSI?
The final episode involved a bombing at a casino, a trial, and a resolution that brought the original team back together for one last case.
What is Nick Stokes' role and background?
Nick Stokes was a dedicated CSI who often connected with victims and their families, bringing a compassionate element to the team.
What is the role of lab analysis in CSI investigations?
Lab analysis is crucial, where scientists examine evidence like DNA, fingerprints, and trace materials to link suspects to crimes.
What are some popular fan theories about CSI?
Fan theories often discussed the long-term implications of certain cases or the personal lives of characters that weren't fully explored.
How did the show handle major character departures?
Departures were usually written into the plot, with characters moving on to new jobs, facing personal crises, or retiring, sometimes with emotional goodbyes.
What was the theme song for CSI: Crime Scene Investigation?
The theme song for CSI: Crime Scene Investigation was 'Who Are You' by The Who.
What is the legacy of CSI: Crime Scene Investigation?
CSI's legacy is its pioneering role in popularizing forensic science on television and inspiring a generation of viewers interested in crime solving.
Who was the creator of CSI: Crime Scene Investigation?
The creator of CSI: Crime Scene Investigation was Anthony E. Zuiker.
Are there any plot holes in the series that fans discuss?
Fans sometimes discuss perceived plot holes or scientific inaccuracies that arise from the show's dramatization of forensic science.
How did Warrick Brown's story arc progress?
Warrick's arc involved overcoming addiction and personal struggles to become a respected CSI, though his story tragically ended.
What city is CSI: Crime Scene Investigation primarily set in?
CSI: Crime Scene Investigation was primarily set in Las Vegas, Nevada.
Did any specific real-life cases influence CSI storylines?
While CSI storylines are fictional, they are inspired by real forensic science and police work. Some plot elements might draw inspiration from high-profile or unusual real-life cases that capture public attention, but specific case influences are not usually detailed.
What advice would a real CSI give to aspiring investigators?
A real CSI would likely advise aspiring investigators to focus on strong science education, pay close attention to detail, be patient and thorough, and understand the importance of evidence integrity.
What is the difference between a civilian CSI and a sworn police officer CSI?
Civilian CSIs are primarily scientists focused on evidence collection and analysis. Sworn police officer CSIs often have additional law enforcement duties and may have more direct involvement in the investigative process.
How does CSI portray the emotional toll of the job?
CSI often shows characters dealing with the emotional impact of witnessing disturbing crime scenes and the stress of solving difficult cases. This can include moments of sadness, frustration, and personal reflection.
What is the importance of documentation in CSI work?
Documentation is crucial in CSI work. Every step of the investigation, from finding evidence to analyzing it, must be carefully recorded to ensure accuracy, maintain a chain of custody, and be admissible in court.
What is the role of forensic entomology in CSI?
Forensic entomology is the study of insects found at crime scenes. It can help determine the time of death, identify locations where a body may have been, and sometimes even link suspects to a scene.
How does CSI deal with unusual or bizarre crime scenes?
CSI often tackles unusual or bizarre crime scenes by applying scientific methods to understand the strange circumstances. They look for evidence that explains the "how" and "why" behind the oddity.
How does CSI handle cases with multiple crime scenes?
When there are multiple crime scenes, CSI teams meticulously process each location, looking for connections and patterns. They work to establish a timeline and link the different scenes together.
What are the career paths for someone wanting to be a CSI?
Becoming a CSI typically requires a college degree in a science field like chemistry, biology, or forensic science. Experience in law enforcement or related fields can also be beneficial.
How has forensic science evolved since CSI first aired?
Forensic science has advanced significantly, with new technologies like DNA analysis becoming more sophisticated and widely used. The show has sometimes reflected these advancements, but real-world progress is ongoing.
What is the significance of the 'yellow tape' in CSI?
The yellow tape, often seen in CSI, signifies the boundary of a crime scene. It is used to secure the area, prevent contamination of evidence, and keep unauthorized people out.
How did the producers research the scientific aspects of CSI?
The producers of CSI researched scientific aspects by consulting with real forensic experts, visiting crime labs, and studying forensic science textbooks and journals. This helped them create realistic portrayals of techniques and procedures.
What is the difference between a CSI and a detective?
A CSI primarily focuses on collecting and analyzing physical evidence at a crime scene. A detective is a police officer who investigates crimes, interviews witnesses, and works to apprehend suspects, often using the evidence provided by CSIs.
How does CSI handle cases involving missing persons?
In missing persons cases, CSI might be involved in searching for clues at the last known location of the person, analyzing any evidence found, and assisting detectives in piecing together what might have happened.
What are the challenges of working on outdoor crime scenes in CSI?
Outdoor crime scenes present challenges like weather conditions affecting evidence, the vastness of the area making it hard to find everything, and potential contamination from the environment or public access.
What are the ethical considerations for CSI investigators?
Ethical considerations for CSI investigators include maintaining objectivity, ensuring evidence is handled properly to avoid contamination or tampering, and presenting findings truthfully and without bias.
How does CSI investigate arson cases?
CSI investigates arson by looking for evidence of accelerants, examining burn patterns to determine the fire's origin, and collecting samples for laboratory analysis to identify the substances used.
What are some of the most shocking moments in CSI history?
Shocking moments in CSI history often involve unexpected plot twists, gruesome discoveries, or morally complex situations that deeply affect the characters and viewers.
What are the limitations of forensic science as depicted in CSI?
While CSI often showcases advanced techniques, real-world forensic science has limitations. It can be time-consuming, expensive, and some evidence may be degraded or absent, preventing definitive conclusions.
How does CSI deal with contaminated evidence?
CSI shows the importance of preventing contamination by using protective gear and specific collection methods. If contamination occurs, it is usually addressed by noting it and potentially excluding the compromised evidence.
How do CSIs reconstruct events at a crime scene?
CSIs reconstruct events by carefully examining the placement of evidence, analyzing blood spatter, studying trajectories, and using scientific principles to create a logical sequence of what happened.

Actors

Ted Danson
Ted Danson
D.B. Russell
George Eads
George Eads
Nick Stokes
Jorja Fox
Jorja Fox
Sara Sidle
Eric Szmanda
Eric Szmanda
Greg Sanders
Robert David Hall
Robert David Hall
Al Robbins
Wallace Langham
Wallace Langham
David Hodges
Jon Wellner
Jon Wellner
Henry Andrews
Elisabeth Harnois
Elisabeth Harnois
Morgan Brody
Elisabeth Shue
Elisabeth Shue
Julie Finlay
David Berman
David Berman
David Phillips