Investigative techniques used by private investigators

When we talk about private investigators, we can’t help but think about Sherlock Holmes. He is the most popular fictional private detective known for his proficiency in terms of observation, forensic science, and logical reasoning, all of which is exactly what King Investigators in South Africa are able to offer.

They are a full service investigative firm that carries out surveillance, counter-intelligence gathering and undercover operations, for both civil and criminal cases.

The highly trained investigators at King Investigators use exceptional experience to gather evidence that uncovers hidden information about legal, financial, or personal matters. They provide assistance in fraud cases, child custody and protection cases, missing-persons cases, and premarital screening, to prove or disprove infidelity.

Registered and professional detectives and investigators always take the law into consideration. They are expected to collect evidence according to the rules that govern their profession, to make sure that the evidence is collected in a way that is acceptable in court.

This is exactly what you can expect from King Investigators. Detectives in South Africa carry out physical surveillance to observe a site or follow a suspicious person. Here are some investigative techniques and tools used today by these investigators:

  •        Cameras

Private investigators in Pretoria use cameras to provide time-stamped images of those they are investigating. Videos are also absolute proof of any suspicions that are confirmed or criminal acts carried out.

  •        Cell phones

Cell phones are very useful tools for private investigators. They are able to trace someone by looking into their call logs; showing all missed, received and dialed numbers, including relevant numbers related to the owner listed in their contacts list. Despite what many think, nothing is ever totally deleted off a cell phone, and the experts from King Investigators know just where to find the information.

  •        Computers

Just like cell phones, computers are made to store data and files needed by the user. Private investigators can learn about a person’s address, phone numbers, sites they have been checking lately, credit or arrest history, and so on, just by logging on to the user’s account.

  •        Lie Detector

A polygraph, also known as a lie detector, is an instrument used to record and measure physiological changes in a person undergoing questioning in order to uncover truths or lies. Polygraph testing is currently being used in correctional facilities, during criminal investigations and in civil matters.

A polygraph simultaneously records a minimum of respiratory activity, galvanic skin resistance/conductivity, and cardiovascular activity. The examiners begin with an interview to gain some preliminary information which will be used later to develop diagnostic-specific questions.

  •        GPS trackers

King Investigators assist company fleet managers to keep track of company vehicles through the use of GPS trackers. If you need tracing in Johannesburg in order to make sure that your employees are using company vehicles as required, this team will install GPS trackers where needed.


The private investigators and detectives at King Investigators in South Africa use different strategies to uncover the truth and to get to the bottom of every case in a way that delivers honest outcomes for every client.


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