Private Investigators Birmingham


Sentry Investigations provide highly effective private detective services in Birmingham and surrounding counties with our deployments of GPS vehicle tracking devices for our corporate and private clients. Whether you are dealing with a suspected cheating spouse or an employee who is up to no good, we have a solution for you. Sentry Investigations are highly trained private investigators who have perfected the art of covert GPS tracker deployments.

With our state of the art GPS vehicle tracking devices, we can monitor vehicle movements in real time whilst recording locations, routes and timings. The service provides a full and detailed report in the form of journey logs which we can monitor at any time of day or night simply by logging into our dedicated mobile app or desktop device. The trackers we use prove to be highly effective in pinpointing vehicles down to as little as 1 metre whilst providing movement updates every 3 seconds.

The key benefits of using vehicle trackers is down to the assistance they provide in maintaining contact with the subject vehicle without the issue of having a loss on task. They are also deployed quickly and discreetly and can remain in position for weeks if not months on end without the need to be recharged. Furthermore, GPS vehicle trackers are a far more cost effective way of completing certain objectives than the deployment of manned surveillance. Please note that a GPS tracker will only provide detailed movements of a vehicle and not the movements of the subject once he or she has departed from the vehicle. Assessments and further consultation may be necessary should manned surveillance be required.

The question has come up in the past from clients asking, 'Why don't I just buy a tracker a put in on my self?' We strongly advise against this for a number of reasons. Firstly, it is unlikely the client has any experience doing this and there plenty of things that can go wrong... If you get caught its game over for you. If you deploy a tracker on something hot under the vehicle (like the exhaust pipe) the tracker will melt. If you do not secure the tracker properly it will fall off in transit. Newer vehicles are now being manufactured with plastic under belly's making it very difficult to locate somewhere to secure a device, the tracker can quite easily get lost within this underbelly which will cause all sorts of problems when trying to retrieve it, and it will most likely be discovered by the mechanic during its next service. Deployments of trackers should very much be left to the professionals, doing it your self may save you some money but it could create some serious problems for you down the line. 


The types of investigation which generally make best use of GPS trackers are as follows...


Are you concerned that your partner is having an extramarital affair? Does you partner often disappear with no real convincing explanation of his or her whereabouts? A GPS vehicle tracker is the near perfect solution to get the answers you may desperately be seeking. Our GPS tracking services provide live location updates to pinpoint exactly where your suspected cheating partner is and has been over the course of deployment. The evidence a tracker provides may be more than enough to prove infidelity however, as previously mentioned surveillance may also be required to gather the irrefutable video and photographic evidence of the affair. 



Do you believe a family member including your children may be involved in drugs and other antisocial behaviour? The deployment of a tracking device on his or her vehicle will quickly dispute the lies you have been fed over time. A tracker will highlight where your family member has been, whether at a well known drug hot spot or even a drug dealers house. The evidence is clear and will likely raise some serious questioning with some uncomfortable answering in return.



With online gambling becoming the new norm, high street bookies are still a booming industry. Family members who are addicted to gambling will stop at nothing to cover the fact that they are blowing money and savings on bets. Much like a drug addiction, excuses lies and other forms of deception will become frequent in your household and without the evidence to shut it down, it will only just continue until your family has nothing left to live on. Although a GPS tracker cant monitor your families online gambling presence, it does monitor any trips taken to any local or not so local betting shops.   



Do you suspect an employee is stealing high value items from your business and selling them on? A GPS tracker is a useful aid to surveillance to pinpoint exactly where and when your employee is using his or her vehicle to transport the company owned items. 



GPS vehicle trackers are a useful tool to assist with surveillance operations when investigating employees suspected of being in breach of contract, or taking suspicious levels of unexplained or fabricated absences. An employee maybe claiming that he or she is unwell and needs a few days off, if you have your doubts a GPS tracker could aid in discovery of your employee actually meeting with your clients in an attempt to poach and set up in competition.  



You may simply want to keep an eye on the movements of high your high value assets. If you are shipping an expensive car, boat, jewellery or any other item domestically or abroad, it is wise to keep track of it at every step of the way to ensure nothing untoward happens to it. A GPS tracker is the perfect solution and will eliminate any level of worry during transit as you will know exactly where it is at all times.  

We generally offer our tracking services with daily. weekly, monthly or quarterly packages, but we understand the sensitiveness behind GPS tracking devices so we remain flexible with operational requirements. 

Package Prices - (All packages include GPS tracker deployment, retrieval, required period of monitoring and complete records)


  - Daily package (1 day) - £150 (additional days at £30 per day)

  - Weekly package (7 days) - £275 (additional weeks at £175 per week)

  - Monthly package (31 days) - £500

  - Quarterly package (93 days) - £1200 

If you have any questions or concerns about the use of trackers, please feel free to contact us. Alternatively, you can visit our Blog covering the legality of such devices posted on 17th July 2020. 



Sentry Investigations

Suite 2A, Blackthorn House

Mary Ann Street, St Paul's Square 


B3 1RL



T: 01933778426

M: 07730695853

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