With the evolution of technology, perpetrators are becoming quite clever to easily commit a crime without getting caught by the law enforcement force or private investigators. However, with the use of the same technology, it's not quite a challenge to tail criminals and outsmart them.

Therefore, if you're wondering what these tools are and how you can use them to solve a case quickly and conveniently, keep reading this article!

What are Private Investigative Tools?

As private detectives or private investigators are involved in bringing the facts and lies to the table with reliable evidence for their clients to reach a reasonable conclusion, they need the help of modern tools.

These private investigative tools can range from modern to traditional gadgets. They are usually used for surveillance to observe the suspect's behavior, such as through cameras, audio recorders, or other hidden devices.

What are the Best Private Investigative Tools and Gadgets?    

An investigative tool can make a significant difference between a smooth and complex case. Hence, we have mentioned below some of the best private investigative tools and gadgets that will help you in closing several cases at once.

1.    Reverse View Sunglasses

Reverse view sunglasses are equipped with mirrors inside the lenses, so you can have a rearview without making someone suspect.

The best thing about these sunglasses is that they look like regular sunglasses and still you can see what's going on behind your back while remaining as discreet as possible.

2.    Facial Expression Recognition Software

This modern, innovative software can be easily downloaded on a computer and used to detect different expressions of the subject on the change of topics. This helps to know their behavior and how they respond to specific stimuli.

It can either use a live photo, still-photo, or video to help with your investigation and this software mostly produces accurate and fast results.

3.    GPS Tracking Systems

GPS (Global Positioning System) trackers are beneficial to track the real-time movement of the people involved in the case. As most of these trackers are magnetic, you can install them underneath the car in a cinch and monitor real-time movement on your phone, tablet, or laptop.

When it's hard to hack the GPS system of the suspect's car, installing GPS trackers is the best bet for private detectives. This gadget is quite helpful for cases that involve catching a cheating spouse or partner.  

4.    Layered Voice Analysis

When private investigators find it hard to get the truth out of the individual's mouth, layered voice analysis can help them ease out the process. This piece of technology detects and evaluates changes in the psychological and emotional patterns of human speech.

This ultimately facilitates private detectives to identify when the individual is speaking the truth during an interview or interrogation to get lead in a strenuous case. In order to use this tool, you don't need live audio, but you also can use it on recorded audio files.

5.    Modern Digital Search Tools

Nothing can beat this online tool, as the internet contains an ocean of information on almost every individual worldwide. You can use Google search to scour the internet for a person you want information on. Even if you are not able to find relevant information on the suspect, you can find indirect information with the help of social media.

More than half of the entire world's population actively uses social media, so you can use it as well to track their past record or gather some important evidence to make the investigation successful quickly.

6.    Cameras

Thanks to technology, private investigators don't have to rely on heavy equipment to get a close-up view of the suspects. DSLRs come in various sizes, and they provide you with a pristine, sharp view without having to get close to the suspect and ruin the investigation.

In addition to this, you can also use hidden cameras built in pens or sunglasses that can be installed in cars, different areas, or costumes to get HD views on your smart devices in real-time.

7.    Surveillance Drones

When private investigators aren't able to go to a certain place on foot, they can use this aerial machine to get a view in real-time.

Surveillance drones can be used to watch any outdoor area such as parking lots, a certain area of the property, etc. Premium-quality pictures or videos can then be watched on the smartphone or laptop with time and date stamps.

8.    Spyware

By installing spyware on a smartphone, computer, or any other smart device, you can get a look into the online activities of an individual and what do they engage in regularly.

It helps private investigators to monitor the activities of their suspect and get a lead on the case. However, it's essential to keep in mind that some states may outlaw this and not consider it as a valid source of evidence.