The origins, foundation, and place of operations of this covert agency is unknown as its existence has been kept obscure by nearly everyone in the world. Those who know of its existence has a fictional security clearance called Eyes-Only Clearance. For the fictional security clearance, people who has been given Eyes-Only Clearance are not allowed to tell the outside world what they know about certain things (i.e. Alicia Winston cannot tell the outside world about Alan Dunaway and Wesley Lambert). V.S.S.E. operates literally as a problem-solving intelligence agency which gathers information regarding about terrorists, underground organizations, world-class criminals, and other high-level atrocities through utilization of specialized laptops optimized to encrypt information to protect the obscurity of the agency.
If there is a need to protect the public good, the authority of the V.S.S.E. supersedes the authority of the United Nations and other covert organizations belonging to a particular country (i.e. the United States Central Intelligence Agency). The aim of the V.S.S.E. is to shut down high-level crimes and atrocities in a timely manner. The information gathering is conducted by a group of volunteers, known as "Cooperatives". Cooperatives are civilians who has the privilege to report information to the V.S.S.E. regarding about high-level crimes and atrocities when it's required. When the crime is proven to be something that needs attention, then V.S.S.E. sends out (for the most part) a team of 2 special operation agents to shut the high-level atrocity down.
V.S.S.E. agents are often paired with different hair colors. Paired agents usually have opposing personality e.g. Robert, Alan, Evan and Luke have brash, impatient, immature and hyperactive personality, when Keith, Wesley, Giorgio and Marc have calm, collected, mature and smart personality. Mostly there is always a blonde agent since Time Crisis II. When a V.S.S.E. agent has black hair, he is often a blue agent. On the other hand, his partner is a red agent with blonde hair. Keith, Robert, Luke and Marc are prime examples. Agents with brown hair are often red agents while their partner are blue agents with blonde hair. Alan, Wesley, Giorgio and Evan are prime example. Richard Miller is the only agent that works alone and the only one who wears a black leather jacket with his code name. (Unlike Wesley who wears a black and blue jacket). Luke is the only agent who does not wear a jacket or coat at all but wearing a zippered red vest.
The standard V.S.S.E. weapon is the handgun whose models vary from game to game . Most of the V.S.S.E handguns are chambered for the .45 ACP  and have flashlight attachment. V.S.S.E agents when paired are equipped with the same handgun model but always in different color. Blonde agents have two-tone handguns with black flashlight while their partners have handguns completely black. Since next-generation agents Luke and Marc deploy gas-actuated handguns (chambered in .50 AE), their handguns are not outfitted with optics (or flashlights) as their two-tone handguns are identical to each other. Keith and Robert in Time Crisis 5 changed handgun model  but retained the same Time Crisis II handgun color scheme (Keith's handgun is two-tone while Robert's handgun is completely black).
With the increased enemy militarization, V.S.S.E agents are trained to use enemy weapons  or are equipped with additional weapons .
The V.S.S.E. sustained a number of instances where their reputation was nearly destroyed either by an enemy interception or by an act of treason. Christy Ryan was captured by Neodyne' associates after Jakov Kinisky found out what Christy's intentions were. Outside supporters (i.e. William Rush) had to help the V.S.S.E. out during the weapons trafficking incident after Elizabeth Conway found out about an information leak that endangered the V.S.S.E. agents on their way to San Francisco, forcing Captain Rush to rendezvous with the V.S.S.E. at the airport in lieu of rescue. Keith Martin was scapegoated by Robert Baxter as a traitor who failed a sour mission from three years ago, in which the late Christy Ryan attempted to complete the audit about the traitor - something Keith was more than willing to chip in. Keith turned out to be loyal as he made Luke O'Neil and Marc Godart realize who the real traitor was.
The section lists the most noticeable members of the International Intelligence Agency.
Richard Miller - The One-Man Army, as this catch-copy implies, is the only agent qualified to work alone.
Keith Martin - One of the V.S.S.E.'s senior agents. His pride was shattered between the events of Time Crisis 4 and Time Crisis 5 but with the help of the next-generation agents (Keith did not like Luke as he thought he was a real pain) was able to redeem himself. He and Robert were the army of two in Time Crisis II.
Robert Baxter (Work disregarded during Time Crisis 5) - Robert used to be a senior V.S.S.E. agent, but when he shifted the drug protection failure blame to Keith Martin, he sought to erase the V.S.S.E., prompting Christy Ryan to launch an audit. Christy attempted to cooperate with the V.S.S.E. in good faith but Robert murdered the auditor to keep his act of treason secret, but the secret is out. He and Keith were the army of two in Time Crisis II.
Christy Ryan (Late) - Christy operated as both an International Affairs representative, in which she would masquerade as administrative assistants for the enemies, or as an internal information auditor when required to investigate possible acts of treason. Christy believed that Keith was used for a nasty agenda 3 years prior to Time Crisis 5, so she teamed up with the embattered Anglo Agent to find out what really happened. As she sought to report to the V.S.S.E. to submit her audit in good faith, she was murdered and her briefcase containing her auditor work was lost. Keith recovered the briefcase, but before Robert was able to intercept the case, Keith was able to convince the next-generation agents that Robert was the traitor, signaling that the embattered agent and Christy kept their word to complete the information audit in good faith.
Alan Dunaway and Wesley Lambert - A 2-person team since 1999. They were natural friends even before they were hired into the V.S.S.E.. Recognized for their natural friendship, in which the V.S.S.E. viewed as a plus.
Giorgio Bruno - A V.S.S.E. Agent who previously had a troubled childhood, but was rescued by an Italian Authority. He vowed to live a righteous life, and did so by operating as an Italian NOCS officer during his pre-V.S.S.E. days. Previously working alone, he was partnered with Evan Bernard, and even though Giorgio and Evan were partners for only 1 year (not to mention they were not natural partners as opposed to Alan and Wesley), they are a loyal pair.
Evan Bernard - A V.S.S.E. Agent who hails from a line of fishermen. Although a trusted V.S.S.E. Agent, he was partnered with Giorgio Bruno to further nourish Bruno's path of righteousness.
Sarah Martin - Serves as air support for Giorgio in his solo missions.
Luke O'Neil and Marc Godart - Next-generation V.S.S.E. agents with superhuman speed. Luke and Marc were issued gas-actuated .50 AE handguns to satisfy V.S.S.E.'s ever-growing stringent battery and expectations of their agents' performance. While Luke is brash and impatient, Marc acts with a cool head.
Catherine Ricci - Serves as air support for Luke and Marc. Aghast when Luke and Marc admitted to Ricci that they were duped by Keith, she tried to run Robert over with her chopper to prevent the traitor from launching a drug-filled missile, pushing the missile away from the aircraft in the process. She survived the impact.
VSSE Trainees - New and mysterious characters, looking forward in the Crisis Missions, facing off new challenges and enemies, proven themselves to become full-time agents in the future.
Richard, there's an emergency. There's been a kidnapping! It's Rachel, the daughter of the president of Sercia! The kidnapper is believed to be Sherudo, the last blood relative of the royal family. He lives in an old castle on the northwest island. He's demanding military secrets in exchange for Rachel's life! The deadline is sunset. We don't have much time! Get into the castle and rescue Rachel! The organized crime syndicate "Wild Dogs" is also known to be involved. Good luck, Richard.
~ Head of V.S.S.E Porter Davis's voice mail to Richard
Richard, long time no see. I hope you are ready. Here is your next objective. Your mission is to uncover the plan of the organization "Kantaris". This is their headquarters. The hotel is actually a front for their weapons factory. This is their leader, also known as Kantaris. Intel came up empty on Kantaris. We don't even know a real name or gender. However, we do have positive verification that they are Wild Dog's arms supplier. Good luck, Richard.
~ Head of V.S.S.E's voice mail to Richard (Special)
Your information is appreciated. I have sent in two of our best agents for support. They will be landing on Marano Beach, rendezvous is at 0800 hours. [Alicia: Yes, sir. I'll head for the beach right away.] We're transferring their profiles to you now. Unfortunately, they left before we could provide them with information about you. Currently, we have no way of contacting them.
~ Head of V.S.S.E., after Alicia Winston informed the agency that the Zagorias Federation Army brought tactical missiles to Astigos Island
↑Strayer Voigt Infinity [a M1911 variant] in Time Crisis, H&K Mark 23 in Time Crisis II, Smith & Wesson SW99 in Time Crisis 3, H&K USP Expert in Time Crisis 4 and IMI Desert Eagle Mark XIX in Time Crisis 5
↑The exception being the IMI Desert Eagle Mark XIX chambered for the .50 AE
↑From H&K Mark 23 with a LAM module to H&K 45 handgun without any attachments
↑Keith and Robert in Time Crisis II can use the NDI submachine guns seen in stages 1-2 and 2-1. In Time Crisis 5, Luke and Marc can use M4 Carbines, Kel-Tec KSG shotguns and H&K XM 320 grenade launchers found in Wild Dog's mercenaries armory seen in stage 1-2. Also, Robert in said game uses a H&K MP5K submachine gun taken from an enemy with bulletproof shield
↑Since Time Crisis 3, the machine gun, shotgun and grenade launcher are the basic special weapons. In Time Crisis 4 and Time Crisis 5, helicopter mounted weapons and sniper rifles are used