Frequently asked questions

Petros Drolias is a licensed private investigator in Greece, licence no. 4891/7/1/90-δ’, active since the early 1990s. The office has handled more than 1,500 cases in 14 countries for individuals, businesses, lawyers, insurers and shipping companies.

Our office is at 104 Aiolou Street, 105 64 Athens, a few minutes' walk from Omonia metro station. Meetings are by appointment, and we can also meet by phone or video call.

Yes. We are available 24 hours a day, 7 days a week on 210 321 2200 and 699 321 2200. Many clients prefer to call in the evening or at weekends, and urgent matters do not wait for office hours.

Private and family matters, corporate investigations and due diligence, support for victims of crime, online investigations, litigation support, concerns about teenagers, counter-surveillance and lawful device monitoring. If you are unsure whether your case fits, ask us.

Yes. We work throughout Greece, including Piraeus, Thessaloniki and the islands, and abroad through a network of trusted collaborators.

If there is an immediate danger or a crime in progress, contact the police first. A private investigator works for you, focusing on your case and gathering lawful evidence that can support you, your lawyer or the authorities.

Yes. Private investigators work legally in Greece within the limits of the law. Petros Drolias holds licence no. 4891/7/1/90-δ’ and every method we use respects the Constitution, the Penal Code and data protection law.

No. The privacy of communications is protected by Article 19 of the Greek Constitution, and illegal interception and recording is a criminal offence under Article 370A of the Penal Code. We never intercept calls or messages, and evidence obtained that way would be inadmissible.

No. Bank secrecy, telecom records, tax data and police databases are not accessible to private investigators. We use public registries, open sources, observation in public places and lawful field enquiries instead.

Not on another adult's car without their consent. GPS tracking is lawful for your own vehicles, company fleets and assets, and we can help with those.

Yes. Your identity, your case and our findings are known only to those who need to know. We never disclose that you are a client without your consent, unless the law requires it.

We process personal data in line with the GDPR and Greek Law 4624/2019, only for the purpose of your case and only to the extent necessary. Our privacy policy explains this in detail.

With a free, confidential and no-obligation consultation. We listen to your situation, explain what is lawfully possible and, if an investigation makes sense, propose a clear plan.

There is no standard price, because cases differ in duration, location and resources. After the first consultation you receive a tailored cost estimate in writing, before any work begins, so there are no surprises.

Some questions can be answered in a few days, while others require weeks of work. We give you a realistic timeframe in the plan and keep you updated as the case develops.

A structured written report with findings, a chronology, sources and, where relevant, photographs or video taken lawfully in public places. It is written so that you or your lawyer can use it.

Findings gathered lawfully can be used by your lawyer in proceedings, and the investigator can testify if required. Illegally obtained evidence is inadmissible under Article 19(3) of the Constitution, which is why we only use lawful methods.

Anything that helps us understand the situation: names, addresses, photographs, relevant documents, messages you have received and a short timeline of events. If you have a lawyer, it is often useful to involve them.

Yes. We hold consultations, correspond and write reports in English, and we regularly work with clients who do not speak Greek.

Yes. The consultation can take place by phone or video call, the plan and cost estimate are agreed in writing, and updates and the final report are sent to you securely.

Yes. We frequently work with foreign law firms and can coordinate with your Greek co-counsel when proceedings take place in Greece.

Yes. We carry out due diligence on Greek companies, partners, suppliers and distributors for foreign businesses, using public registries, open sources and discreet field enquiries.

Yes. Through our network of collaborators we have worked on cases in 14 countries, coordinating the work from Athens.

Yes. We can gather evidence, locate witnesses and act on your behalf on the ground after you have returned home, working with your lawyer and reporting to you in English.