Private investigator in Saint-Étienne
For nearly 20 years, Investipole has been supporting individuals, companies and lawyers in Saint-Étienne and its region. Your private detectives conduct investigations, discreet surveillance and research to establish verifiable facts, recorded in a report for your lawyer.
Investipole Detective Private Saint-Étienne · Châteaucreux
Saint-Étienne private detective: solid evidence, legally collected
Each assignment begins with what you need to prove: an affair before a divorce, a poorly respected child custody arrangement, concealed income, a fraudulent sick leave, or unfair competition. Your private detectives in Saint-Étienne only observe from the street or publicly accessible areas, without eavesdropping, tracking devices or intrusion. The result? A dated and detailed report, illustrated with photographs, which your lawyer can present in court; the judge values it accordingly.
From the first contact, your communications are confidential and protected by professional secrecy. The analysis of your situation and the quote cost you nothing; you will generally receive a response within 24 hours. You will find your private investigation agency in Saint-Étienne at 3 rue Jacques Constant Milleret, in the Châteaucreux business district, just a few minutes on foot from the station.
Individuals · Family · Estate
Saint-Étienne private detective for adultery and divorce, from Bellevue to Montreynaud
Adultery and fault divorce at Saint-Étienne
- discreet surveillance
- Dated meetings
- Photos from the street
Child custody & visitation rights
- Discounts observed
- Presence of the parent
- Neutral reporting
Child support & compensatory payments
An ex-spouse claims to be resourceless but works in the dark, runs a company or leads a comfortable standard of living? Such elements count for fixing maintenance as a divorce financial settlement. Your detectives gather information obtained lawfully; the judge then fixes the amounts.
- Unreported activity
- Visible estate
- Current expenditure
Other family situations
Harassment, abuse or spy gadget: documenting without exposing yourself
Camera or microphone hidden in your home, repeated passages in front of your home, abandonment of the marital home, disputed succession: these files require a method specific to each place. Your detective agency in Saint-Étienne adapts its means to a downtown building as to a house on the heights, and fixes the perimeter in writing. If you are in danger, immediately dial 17. 3919, free and anonymous, advises victims of domestic violence.
Enterprises · HR managers · Advice
Saint-Étienne detective for businesses, from Molina to Monthieu
Offices of Châteaucreux, workshops of La Cotonne and Molina, signs of Steel in Monthieu: the companies of the Stéphanois basin face very concrete risks. Stop working complacency, diverted customers or stock that disappears call for solid evidence before any procedure. Your detectives bring them together without ever causing infringement.
Sick leave and employer loss
Activity and working hours monitoring
Shortened business rounds, company vehicle used for private purposes, attendance records unrelated to reality: your agency intervenes only on serious suspicions. The social judge only permits surveillance of an employee if this measure is essential for evidence and proportionate to the purpose pursued.
Unfair competition and contract clauses
Thefts, shrinkage and internal frauds
People · Debtors · Partners
Searching for people and debtors at Saint-Étienne
A debtor who has left their residence, an heir whose family has lost track of them, a partner who has become unreachable: an old address often leads to nobody. Before any investigation, your private investigation agency in Saint-Étienne verifies the reason for your request: only a legitimate interest permits action. Legally accessible sources are then cross-checked, and the obtained address is verified on site.
Locating a relative or an heir
The search remains limited to the reason indicated in the written agreement. Once the address has been confirmed, your agency will communicate it to you, and the person found will remain free not to answer.
Locating a debtor
Assessing creditworthiness
Before assigning or negotiating, it is better to know what the opposing party can pay. Visible properties, companies held, standard of living: your detectives build a state based on lawful information.
Checking a business partner
Supplier, acquirer or future associate: your detectives control the existence of the activity, the identity of the leaders and the consistency of the information announced before your engagement.
Legal supervision
A private investigation at Saint-Étienne, within the law
"A proof is only valid by the method that produced it."
A legitimate reason
Protecting a right, preparing a trial or establishing a disputed fact: the signed written agreement specifically sets out this objective.
Legal means
Listens, GPS tracers placed in hiding, intrusion into a home or fraudulent file browsing are prohibited.
Limited impact
Duration, times and places of observation are reduced to what your file requires, no more or less.
Judge's assessment

Why Investipole in Saint-Étienne?
An agency in Châteaucreux, experienced with court requirements
Each finding is dated, located and illustrated; no assumptions are mixed.
Pentes, Grand-Rue, N88, A72 and A47: the discreet surveillance plan incorporates the axes that connect the city to Ondaine, Gier and Forez.
Your identity, your exchanges and the report remain reserved for those you authorize.
Lawyers & Partners
An investigation supporting your lawyer's strategy
Commissioner of Justice
Legal advice
Technical experts
The steps
How your investigation at Saint-Étienne goes
You are informed at every stage, and nothing is committed without your consent.
Initial consultation
At first contact, you describe the situation and what needs to be proven. The request is accepted only if its reason is legitimate and the mission is achievable.
Mandate & budget
The written agreement specifies the objective, means, limits and cost. The quotation does not cost you anything.
Deposit
Transactions begin after a down payment is made, usually 50%.
On the ground
Your detectives in Saint-Étienne deploy the agreed procedure and inform you as soon as any significant information emerges.
Report delivery
You will receive a chronological document, with places, schedules and photographs, to be transmitted to your lawyer.
Means mobilized
Means suited to slopes, trams and expressways
How many detectives for discreet surveillance in Saint-Étienne, how many vehicles? The answer depends on the probable course of the person, never a package.
Foot or motorised tailing
On foot in the shopping streets, by car on the N88 or the A72, or aboard the T1 on the Grand’Rue: the procedure adapts to the chosen mode of transport.
Pictures
Photographs and videos are taken in public space, without prejudice to privacy; only pictures useful to the file are kept.
Certificates
Relay outside the Loire
When the person followed leaves the Loire, towards Lyon via the A47 or towards the Auvergne by the A72, a relay is organised with another of the 15 Investipole agencies.
discreet surveillance at Saint-Étienne and in the Stéphanois basin
Tailing in Saint-Étienne: slopes, tramway and expressways
Saint-Étienne occupies the Furan valley, at the foot of the Pilat massif, where this valley opens towards the plain of Forez. The river flows today under the city. Around the center, perched districts such as the Crêt de Roc or Montreynaud each require a particular reading of the land to a private investigator in Saint-Étienne.
In the city centre, the Grand’Rue runs along the north-south axis and is traversed end to end by the T1 tramway. Pedestrian streets, Jean-Jaurès and Hôtel-de-Ville squares, scarce parking: your detectives work on foot, with a vehicle stationed on the outskirts of the area.
On the STAS lines, three trams serve the city. The T1 connects Hôpital Nord to Solaure, the T2 connects Châteaucreux station to the Cité du design, and the T3 serves Bellevue. Key bus lines, such as the M1 or M2, extend the service towards Ondaine. Switching from tram to bus, then to walking, takes only a few minutes; your detectives therefore allocate the probable stops in advance.
By road, the N88 crosses the urban area: towards Firminy and Ondaine on one side, towards Saint-Chamond on the other, where the A47 continues towards Givors and Lyon. To the north, the A72 runs towards Andrézieux-Bouthéon, the Forez plain, and then the A89. Your detectives position themselves in advance near the access ramps.
Around Châteaucreux and Monthieu, the business district, the TER and TGV stations, as well as the Steel shopping centre, concentrate dense flows during peak hours. As soon as a person enters an office or private property, your detectives cease observation: the law requires it.
The preparation finally sets recovery points: tram stops, Carnot, Bellevue or La Terrasse stations, ramps of the N88 and A72. Each billed hour thus serves a useful moment of the journey.

A word from the Manager
"Diriger Investipole in Saint-Étienne for nearly 20 years has been doing this job with an intact passion and constant demand. The metropolis imposes a real reading of the terrain: discreet supervision can start at Châteaucreux, continue towards the Grand-Rue, switch to the area of Bellevue or borrow the N88. In each case, our role remains the same: checking the facts accurately, preserving the confidentiality of the client and providing a useful report to both lawyers and competent courts."
David LIOBARD, Managing Director
Surveys Saint-Étienne · Loire
Saint-Étienne detectives, from the Gier valley
to Roannais
From Châteaucreux, your detectives operate throughout Saint-Étienne Métropole, from the Ondaine to the Gier Valley, then across the Forez plain and up to Roanne. The system anticipates transitions between tramways, the N88, the A72 and secondary roads in the Saint-Étienne area.
- Saint-Étienne
- Roanne
- Montbrison
- Andrézieux-Bouthéon
- Firminy
- The Talaudière
- Saint-Chamond
- Rive de Gier
FAQ
Private detective in Saint-Étienne in 15 answers
Useful answers before starting an investigation.
What budget should you plan for a private detective in Saint-Étienne?
The rate for a private detective in Saint-Étienne ranges from €90 to €120 excluding VAT per hour depending on several criteria, with a free quote. The total depends on the number of hours, night or weekend time windows, the number of detectives deployed, and the kilometres. You approve the budget in writing before the mission begins.
Tailing in Saint-Étienne: is it legal?
Yes, if discreet surveillance pursues a legitimate purpose and remains proportionate to that purpose. Your detectives are placed on the public highway or in places accessible to all; no observation takes place from private property. If the person contests, the judge weighs his/her privacy against the intended purpose.
How does tailing work in Saint-Étienne's terrain?
Unobtrusive surveillance in Saint-Étienne prepares neighborhood by district, as the slopes, pedestrian squares and tram often cut off visibility. Your detectives spot in advance the stops of the T1, the T2 and the T3, access to the N88 and parking near the point of departure.
Which towns around Saint-Étienne do you cover?
Your detectives cover the whole of Saint-Étienne Métropole, from Firminy and the Ondaine to Saint-Chamond and Rive-de-Gier, not to mention La Talaudière and Andrézieux-Bouthéon. The missions also extend to Montbrison, Roanne and the entire department.
Can you continue a tailing beyond Saint-Étienne?
Yes, if your written agreement so provides. Your detectives can follow the person to Lyon via the A47, to Le Puy-en-Velay by the N88 or to Clermont-Ferrand by the A72 and then the A89. Outside the region, another Investipole agency can provide the relay.
Investigation of an employee in Saint-Étienne: under what conditions?
Serious suspicions and a legitimate reason are essential: competition during the contract, theft, fraud or undeclared work. The system must remain necessary and proportionate. Your detectives adhere to relevant professional facts observed in public spaces.
How can you contact Investipole in Saint-Étienne?
Three options: the 04 77 42 32 36, the contact address@investipole.fr or the online contact page form. All exchanges remain confidential; your file and the quotation are free of charge. Usually take 24 hours to get an answer.
Confidential contact
Got a doubt in Saint-Étienne?
Write or call.
Explain what is happening, where and at what times, and what you need to demonstrate. Your detective agency in Saint-Étienne checks the legality and usefulness of the mission, then sends you a written agreement with a free quotation.
Investipole Detective Private Saint-Étienne
3 rue Jacques Constant Milleret · 42000 Saint-Étiennecontact@investipole.fr · +33 4 77 42 32 36 · 7 days a week, from 6 am to 9 pm

