Private investigator in Grenoble
For almost 20 years, Investipole has been supporting individuals, companies and lawyers in Grenoble 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 Grenoble · Berriat
Private detective Grenoble: proof through facts
A suspected affair, a tense separation, ignored visitation rights, reduced income, a questionable sick leave, diverted expertise: your private detectives in Grenoble start from your legal question. Observations are made from the street or a publicly accessible place, without a microphone, without a tracker and without entering the threshold of a residence. The findings are compiled in a chronological report, with photographs: it can be submitted in court; the judge assesses its value.
Your first call remains confidential, under professional secrecy. You do not pay for the study of the request or the estimate, and a response usually arrives within 24 hours. Your private investigation agency in Grenoble is located at 155 cours Berriat, served by tram A (Berriat – Le Magasin stop), about ten minutes on foot from the station.
Privacy · Couple · Children
Private detective Grenoble for infidelity, divorce or child custody
Infidelity and divorce proceedings at Grenoble
- discreet surveillance on foot or by car
- Meeting record
- Clichés dated
Child custody & visitation rights
- Discount times
- Parent present or not
- Neutral finding
Child support & compensatory payments
Buildings carried out without invoice, self-entrepreneur activity silently, standard of living that the statements do not explain: as many elements that matter for maintenance as for divorce financial settlement. Your detectives only retain information obtained lawfully. The judge then stops the amounts.
- Real income
- Undeclared work
- Standard of living
Other civilian files
Hidden microphones, harassment, violence: establishing facts methodically
Search for listening devices or cameras, harassment, domestic violence, leaving the marital home, inheritance, residence monitoring: your agency adapts the arrangement to the address and its environment. The perimeter is set in writing before any operation. In case of immediate danger, call 17; for advice, 3919 assists victims of domestic violence.
Employers · HR · Business lawyers
Grenoble detective for businesses, from the Presqu’île to Inovallée
Laboratories, headquarters, workshops and shops in the metropolis share the same risks: stop working complacency, employee who approaches customers on his behalf, stocks that melt. Before initiating a procedure, your private detectives establish dated facts, without ever causing the offence.
Sick leave: proving damages
Employee activity check
Company vehicle used on weekends, invented customer appointments, presence declared but not effective: your agency only intervenes on serious suspicions. Discrete supervision of employees is in principle ruled out by the social court; it is allowed only if no other means allow proof and if the achievement remains proportionate.
Unfair competition & know-how
Internal theft & fraud
People & assets
Debtors and assets: investigations in Grenoble
A debtor residing with a third party, an heir settled in a neighbouring valley, a relative who has moved to another commune: an address alone is not enough to locate someone. Your private investigation agency in Grenoble first verifies the purpose of your request, then cross-checks accessible sources before confirming on site.
Relative or heir to track down
The search is based on the declared purpose; once the person is located, contact is made with respect for his or her privacy.
Moved debtor
Solvency of a party
Should we assign, compromise or give up? Your detectives assess what the opposing party can actually pay, based on lawful information.
Partner check
Subcontractor, Resume or Partner: Before your engagement, your detectives confirm that the activity exists, identify who directs it and identify inconsistencies.
Applicable law
Grenoble: a private investigation under legal control
"Look for evidence, never in lawlessness."
A legitimate goal
Defend a right, prepare a procedure or verify a legal fact: the written agreement specifies this purpose.
Legal means
Listening, hidden tracers, entry into a home and illegal viewing of files are excluded.
Measured surveillance
Locations, duration and times remain limited to what is required by the purpose of the file.
Judge oversight

Why Investipole in Grenoble?
Nearly 20 years of fieldwork and rigor adapted to Grenoble courts
Time per hour, each finding is located and illustrated, without interpretation.
Bridges on the Isère and the Drac, tramway, A480, South bypass and exits to the valleys enter into each discreet surveillance plan.
Only the persons you designate have access to your exchanges, written agreement and report.
Legal partners
Your lawyer at the centre of the investigation
Commissioner of Justice
Lawyers of the network
Mandated experts
Detracted from a mission
Your case at Grenoble, step by step
Each step is subject to a point with you before moving on to the next.
Situation analysis
You set out the facts and your objective. Your agency controls the legitimacy of the request and its feasibility.
Mandate & quote
A written agreement establishes the purpose, means, limits and budget; the quotation is free of charge.
Kick-off
Transactions start after payment of a down payment, usually 50%.
Investigations
Your detectives implement the planned measures and alert you as soon as a significant fact is observed.
Final report
A document dated, located and illustrated, ready to be forwarded to your lawyer.
Investigation tools
Means chosen according to terrain, bridges and traffic
The number of detectives and vehicles depends on the expected journey, never a package.
Tail & observation post
On foot in the city centre, by car on the A480 and the southern ring road, by bicycle or on the tram: the setup adapts to the tracked person's mode of movement.
Photographs
Your detectives photograph or shoot only in public space, without affecting the privacy of people, and keep only useful images.
Witnesses
Network of 15 agencies
If the follower leaves Isère to Lyon, Chambéry or Valence, the other Investipole agencies can take over.
discreet surveillance in Grenoble and the Grenoblois Y
Tail at Grenoble: bridges, tramway and bowl exits
Grenoble extends in a bowl, at the confluence of Isère and Drac, between the Chartreuse, Vercors and Belledonne. The outings of the agglomeration follow the three branches of this "Y": the Grésivaudan to the north-east, the Voreppe cluse to the north-west, the Drac valley to the south. For a private investigator in Grenoble, each branch prepares as a separate route.
In the city centre, pedestrian streets and tram-only lanes complicate monitoring by car. Your detectives move on foot between Place Grenette, Place Victor-Hugo and the Isère quays, with a vehicle stationed on the edge of the area.
On the M réso network, five tram lines, from A to E, connect the city centre to Fontaine, Échirolles, Saint-Martin-d’Hères or the university campus. A person boarding a train can change lines, get off and then continue by bike: your detectives divide the platforms and exits before departure.
On the road, the A480 runs along the Drac to the west and the southern bypass (N87) connects the A480 to the A41 by bypassing the southern part of the urban area. The A41 heads towards Chambéry via the Grésivaudan, the A48 towards Voiron and Lyon, and the A51 towards Trièves. Your detectives position a relay at the most likely interchanges.
Around the Presqu’île and the campus, flows change according to the schedule: large arrivals in the morning, many bicycles, sites with controlled access. If the person being followed enters a site closed to the public, observation stops at the entrance, as the law requires.
From the beginning of the preparation, your detectives choose key observation points: bridges, tram stations, underground parking exits, and the interchanges of the A41 and A48. Thus, the hours engaged correspond to the crucial moments of the journey.

A word from the Manager
"Diriger Investipole in Grenoble for almost 20 years has been doing this job with an intact passion and constant demand. The metropolis requires a true reading of the terrain: discreet supervision can start during Berriat, continue to Europole, switch to the docks of Isère or borrow the A480. In each case, our role remains the same: to verify the facts accurately, preserve the confidentiality of the client and provide a useful report to the lawyer as well as to the competent courts."
David LIOBARD, Managing Director
Detective Grenoble · Metropole · Isère
Grenoble detectives: the metropolis
and all of Isère
From Berriat Street, your detectives cover Grenoble-Alpes Métropole, the Voironnais, the Grésivaudan and the northern part of the department up to Vienne and Bourgoin-Jallieu. The system is prepared for transport changes and rapid exits from the urban area.
- Grenoble
- Oil
- Bourgoin-Jallieu
- Vienna
- Chirolls
- Saint-Martin-de-Hères
- Meylan
Questions & Answers
FAQ: private detective in Grenoble
Short answers to the questions asked before a first appointment.
How much does a private detective cost in Grenoble?
The rate for a private detective in Grenoble ranges from €90 to €120 excluding VAT per hour depending on several criteria, with a free estimate. Duration, night or weekend hours, number of detectives, and kilometres covered are taken into account in the calculation. The budget is confirmed in writing before any intervention.
Is surveillance allowed in Grenoble?
Yes, provided that you serve a legitimate interest and remain proportionate. Your detectives observe from the public highway or places open to the public, never from private property. In case of dispute, the judge controls the proportionality of the infringement to privacy.
How does surveillance work between Grenoble and the valleys?
discreet surveillance between Grenoble and the valleys is prepared branch by branch: Gresivaudan, Voreppe cluse or Drac. Your detectives anticipate bridges, tram connections, A480 and the South ring road, then place relays at probable exits.
Do you operate throughout the Grenoble metropolis?
Yes, Grenoble and the entire metropolis are covered, from Échirolles to Meylan via Saint-Martin-d'Hères. The missions extend to Voiron, Bourgoin-Jallieu, Vienna and the rest of Isère.
Can you track someone leaving Grenoble?
Yes, provided that the written agreement provides: your detectives follow the person to Chambéry, Lyon or Valence by the A41, the A48 or the A49. Beyond Isère, the 15 Investipole agencies can take over.
In which cases can a company in Grenoble investigate an employee?
Only in the presence of serious suspicions and a legitimate motive, such as competing activity, robbery, fraud or hidden work. Control must remain necessary and proportionate to the purpose pursued. Your detectives limit the mission to useful facts and public space.
How to contact your Grenoble agency?
Call 04 72 53 48 54, email contact@investipole.fr or fill out the form on the Contact page. Your request remains confidential; the study and quotation are free of charge, with an answer in general within 24 hours.
Contact
Any questions?
Usually answered within 24 hours.
Describe the situation, locations and known schedules, as well as what you need to demonstrate. After examining the legality and interest of the mission, your detective agency in Grenoble will send you a written agreement and a free quotation.
Investipole Detective Private Grenoble
155 cours Berriat · 38000 Grenoblecontact@investipole.fr · +33 4 72 53 48 54 · 7 days a week, 6 a.m. – 9 p.m.

