
Private Investigator Derby | SPI
Covert Surveillance | TSCM Bug Sweeps | People Tracing | Background Checks | Corporate Investigations
Sentry Private Investigators provides professional private investigator services throughout Derby, Derbyshire and the wider East Midlands. Whether you need evidence relating to a personal matter, concerns about an employee, help locating an individual or specialist surveillance, our investigators provide discreet and proportionate support tailored to your circumstances.


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Professional Private Investigators in Derby
When you hire a private investigator, you are often dealing with a situation where reliable information is difficult to obtain through conventional means. Sentry Private Investigators Ltd provides discreet investigative services to private individuals, businesses and legal professionals across Derby and the surrounding area. Since 2013, our investigators have worked on a wide range of personal, corporate and evidence-gathering assignments throughout the UK. Every investigation begins with understanding what you need to establish. Rather than applying the same approach to every case, we assess the circumstances, available information and intended objective before recommending an appropriate course of action. This could involve covert surveillance, vehicle tracking, database enquiries, background research, technical counter-surveillance or a combination of investigative methods. Our objective is straightforward: to establish facts and provide you with reliable information on which you can make an informed decision.
Enquire now for a confidential consultation with a private investigator.
Sentry Private Investigators Ltd - Industry Professional Associations
Private Investigator Services in Derby
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SPI provides a comprehensive range of investigation services across Derby for individuals, businesses and professional clients.
Covert Surveillance
Surveillance is one of our core investigative services and can provide clear evidence where somebody's movements, activities or associations need to be established. Our investigators conduct discreet foot, mobile and static surveillance operations using professional photographic and video equipment. Surveillance may be appropriate for matters including: Suspected infidelity Cohabitation investigations Employee misconduct Workplace absence Fraudulent injury claims Employee moonlighting Theft investigations Business disputes Child welfare concerns Other situations requiring independent evidence Where appropriate, clients receive a detailed investigation report supported by relevant photographs and video evidence obtained during the operation.
Suspecting that a partner may be hiding something can create considerable uncertainty. Our Derby private investigators handle relationship and matrimonial investigations discreetly and without judgement. Where surveillance is appropriate, the purpose is to establish what is actually happening rather than relying on assumptions or incomplete information. Investigations can be structured around specific dates, routines, locations or other information already known to the client. When the investigation concludes, we provide a clear account of what was observed together with supporting evidence where available.
Corporate Investigations
Businesses sometimes face situations that cannot be resolved through internal procedures alone. SPI supports companies, HR departments, solicitors and other professional clients with discreet corporate investigations throughout Derby and the wider East Midlands. Our corporate investigation services include: Employee theft investigations Fraudulent workplace injury claims Employee absence investigations Moonlighting investigations Covert surveillance Background checks Due diligence Debtor tracing Asset-related enquiries Process serving Mystery shopper investigations Investigations are planned around the specific commercial issue involved, with particular consideration given to proportionality, confidentiality and the potential requirement for evidence at a later stage.
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If you need to locate somebody in the UK, our professional tracing service can often establish a verified current residential address quickly. People tracing may be required for: Debtor tracing Legal proceedings Serving court documents Locating former tenants Finding witnesses Beneficiary and probate matters Reconnecting with family members Locating former friends or associates Our standard UK people tracing service uses professional databases and investigative research methods that are not generally available through ordinary internet searches. Where the correct full name and date of birth are provided, our standard trace is currently available on a no find, no fee basis.
TSCM Bug Sweeping Derby
Concerns about hidden listening devices, cameras or tracking equipment require specialist technical investigation. SPI provides professional TSCM bug sweeping services in Derby for homes, businesses, offices and vehicles. Our technicians use specialist counter-surveillance equipment and physical inspection techniques to identify potential technical surveillance threats including: Concealed listening devices Hidden cameras Radio-frequency transmitters GSM-based devices Wi-Fi and Bluetooth devices GPS tracking equipment Electronic devices designed to remain dormant Suspicious wiring or unauthorised electronic equipment TSCM services may be required following suspected stalking or harassment, relationship disputes, confidential information leaks, workplace concerns or suspected unauthorised surveillance. We also provide preventative sweeps for businesses responsible for protecting commercially sensitive conversations and information.
Background Checks and Due Diligence
Knowing who you are dealing with can be important before entering a personal, professional or commercial relationship. SPI carries out background enquiries and due diligence investigations using lawful information sources, specialist databases and open-source intelligence. Depending on the circumstances and lawful basis for the investigation, enquiries may help establish information relating to an individual's identity, history, business interests, address history and other relevant matters. Corporate clients may also use due diligence investigations when assessing potential employees, contractors, business associates or commercial relationships.
GPS Vehicle Tracking
Vehicle tracking can provide valuable intelligence about the movements and use of a vehicle when conducted for a lawful and legitimate purpose. Where appropriate, GPS tracking may be used alongside physical surveillance to build a clearer picture of movements and behaviour. All tracking enquiries are assessed before deployment to ensure the circumstances are appropriate and that the proposed investigation can be carried out lawfully and proportionately.
Why Choose Sentry Private Investigators?

Hiring a private investigator often involves disclosing information that is highly personal or commercially sensitive. Choosing an established and accountable investigation company is therefore important. Experienced Investigators Sentry Private Investigators has operated within the UK private investigation industry since 2013, with extensive experience in covert surveillance, technical counter-surveillance, tracing and wider investigative work. Professional Memberships SPI maintains professional affiliations within the UK investigation industry, including membership of the Association of British Investigators (ABI) and the Institute of Professional Investigators (IPI). ICO Registered Sentry Private Investigators Ltd is registered with the Information Commissioner's Office and handles personal information in accordance with relevant UK data protection requirements. Male and Female Investigators Both male and female investigators can be deployed where operational circumstances require a particular approach. Clear Pricing Before commencing work, we explain the anticipated costs and investigative approach so you understand what is being proposed. Confidential Service Client information and investigation details are handled discreetly throughout the enquiry and subsequent investigation.
Local Private Investigation Coverage Across Derby
We provide private investigation services throughout Derby and surrounding areas, including:
Derby City Centre | Pride Park | Allestree | Mickleover | Littleover | Chaddesden | Spondon | Chellaston | Oakwood | Alvaston | Sinfin | Mackworth | Borrowash | Long Eaton and surrounding Derbyshire areas.
Our central Midlands location also allows us to support investigations that begin in Derby but subsequently move into Nottinghamshire, Leicestershire, Staffordshire, Birmingham or elsewhere across the UK.
This is particularly important during mobile surveillance operations, where subjects rarely remain within a single local authority boundary.
How Our Derby Investigations Work
Step 1
Confidential Consultation
Contact SPI by telephone, email or our online enquiry form and explain what you need to establish. We will ask relevant questions about the circumstances and discuss what information or evidence you already have.
Step 2
Investigation Plan
We assess the available information and recommend an appropriate investigative approach. You will be informed of the likely costs before committing to the investigation.
Step 3
Investigation and Evidence
Our investigators carry out the agreed work and provide updates where appropriate.
On completion, you will receive the relevant findings and supporting evidence generated during the investigation.
How Much Does a Private Investigator in Derby Cost?
The cost of hiring a private investigator depends on the service required and the complexity of the investigation. Some services, such as people tracing, are available for a fixed fee, while surveillance operations are generally priced according to the number of investigators required and the duration of deployment. SPI publishes pricing for many of our most frequently requested services so clients can understand likely costs before making an enquiry. More complex investigations are individually assessed and quoted according to the work required.

Hire a Private Investigator in Derby
You do not need to know exactly which investigation service you require before contacting us.
Explain the situation and what you are hoping to establish, and we can advise whether professional investigation is appropriate and which approach is likely to be most effective.
All initial discussions are treated confidentially.
Private Investigator Derby FAQs
01.
What services can a private investigator in Derby provide?
SPI provides covert surveillance, relationship investigations, corporate investigations, people tracing, debtor tracing, TSCM bug sweeping, GPS vehicle tracking, background checks, due diligence and other professional investigation services throughout Derby and the wider East Midlands.
02.
Is it legal to hire a private investigator?
Yes. Private investigators operate legally throughout the UK, although investigators must still comply with relevant legislation including data protection, privacy and other applicable laws. The legality of a particular investigative technique depends upon the circumstances and how it is carried out, which is why enquiries should be assessed before work begins.
03.
Can you investigate a cheating partner?
Yes. Relationship and infidelity investigations are common reasons for instructing a private investigator. Depending on the circumstances, covert surveillance can be used to establish movements, meetings and other relevant activity while maintaining discretion.
04.
Do you provide private investigators throughout Derbyshire?
Yes. We cover Derby as well as surrounding areas across Derbyshire and the wider East Midlands. Investigations can also continue nationwide where necessary.
05.
Can investigation evidence be used in court?
Professional investigation reports, photographs and video evidence can potentially support civil, employment, family or other legal proceedings. Whether particular evidence will ultimately be accepted or relied upon is a matter for the relevant court, tribunal or legal representatives.
06.
How do you ensure discretion during investigations in Derby?
How do you ensure discretion during investigations in Derby?
07.
How much does surveillance cost in Derby?
The cost depends primarily on the number of investigators required and the duration of the operation. SPI offers both single and multi-investigator surveillance deployments and provides the expected cost before the operation begins.
08.
Can you trace someone who has moved address?
Yes. Our UK people tracing service is designed to establish a person's current residential address using professional databases and investigative research methods. The amount of information available about the subject can affect the likelihood of a successful trace.
09.
Will my investigation remain confidential?
Yes. Our UK people tracing service is designed to establish a person's current residential address using professional databases and investigative research methods. The amount of information available about the subject can affect the likelihood of a successful trace.





