Alexandre Ribeiro – Certified Private Investigator
LIDEPPE | IKD | APDPE
24/7 Confidentiality
Private Investigator Trofa and Santo Tirso
Private Investigation Agency Porto
Private Investigation Agency
Trofa and Santo Tirso
Private Detectives Portugal operates in Santo Tirso and Trofa with a specialized structure, tailored to meet the specific requirements of this region. Our local unit is fully integrated with our Agency in Porto, ensuring a seamless operational flow.
We combine an in-depth understanding of the area with the agility required for complex investigations, delivering rapid, discreet, and legally robust results. Every operation is overseen by Detetive Alexandre Ribeiro (LIDEPPE Member No. 33), whose leadership ensures the technical rigor and integrity that define our firm.
Geographic Effectiveness with Absolute Secrecy
With tactical control of the main road exits and local connecting axes, such as the A3 , A41 and EN14 , we guarantee continuous surveillance and short or long-distance monitoring without security breaches.
Our coverage spans the entire Greater Porto area, ensuring that our clients benefit from the same high standards of quality and confidentiality in every part of our network, including our branches in Vila Nova de Gaia, Gondomar, Matosinhos, Maia, Valongo & Ermesinde, and Vila do Conde & Póvoa de Varzim.
Regardless of the area where you require evidence gathering or technical surveillance, our intervention protocol is perfectly aligned, facilitating an agile, integrated, and cross-municipal response.
Combating Fraudulent Absenteeism and False Sick Leave
The abuse of fake sick leave represents a severe cost for local industries. Our detectives conduct routine monitoring and control to verify whether an employee on sick leave is actually engaged in other economic activity or feigning their incapacity. Through specialized corporate investigation support in Porto, we deliver detailed reports that serve as irrefutable evidence in dismissal proceedings for just cause .
Counterintelligence , Unfair Competition, and Trademark Protection
We operate in the monitoring of fleet diversions , diversion of raw materials , leakage of confidential information to direct competitors, and counterfeiting networks that infringe patents and trademarks in the Santo Tirso and Trofa region, frequently extending our operational checks to the neighboring municipality of Maia .
Confidential Marital and Family Investigation
Beyond the corporate sector, we maintain specialized teams to resolve doubts and suspicions of a personal and family nature.
Investigation of Betrayal and Risky Behaviors
If you suspect infidelity on the part of your partner, a sudden deviation from routines or schedules should be investigated. We activate our specialized marital and infidelity investigation service to monitor routines in public places, restaurants, hotels, and suspicious outings in the Santo Tirso-Trofa area, providing you with a robust evidence dossier including high-definition photos and videos .
