Understand the Signs, Services, and What to Expect From a Licensed Investigator

When Clarity Matters Most—Trust a Private Investigator

Top Reasons to Hire a Private Investigator

Not sure when it's time to bring in an expert? Below are the most common investigative needs that lead clients to hire us:

1. Infidelity Investigations

If your partner’s behavior has changed—sudden secrecy, emotional distance, late nights—it could point to infidelity. But assumptions only add stress. A professional infidelity investigator uses discreet surveillance, legal GPS tracking (where permitted), and digital forensics to uncover the truth.



We document findings with clear video and photographic evidence—all while keeping your case strictly confidential.

Warning Signs of Cheating May Include:

• Unexplained absences or vague explanations
• Password-protected devices and hidden messages
• Emotional disconnection or changes in intimacy
• Suspicious financial transactions

2. Comprehensive Background Checks

Whether you’re hiring an employee, entering a relationship, or vetting a tenant, professional background checks offer peace of mind.

We go beyond what online tools can provide, using verified databases to uncover:

• Criminal and civil history
• Employment and credential verification
• Alias and address histories
• Asset searches and financial red flags

Serving clients throughout San Francisco and Northern CA, Bonnington PI ensures you’re protected before making high-stakes decisions.

3. Surveillance Services That Are Legal and Effective

Surveillance is essential in many cases—from suspected infidelity to workers’ compensation fraud, cohabitation, or child custody concerns.

Unlike amateur tracking or DIY surveillance apps, our team uses state-licensed investigators, high-tech gear, and strategic positioning to avoid detection and collect admissible evidence.

• Surveillance is always performed within California’s strict legal limits, ensuring nothing jeopardizes your case.

4. Fraud & Insurance Investigations

Fraud costs California businesses billions every year. From staged auto accidents to falsified disability claims, our investigators identify and document fraudulent activity, helping attorneys, insurers, and employers take action.

We conduct:

• Workers’ comp fraud investigations
• Disability and injury surveillance
• Financial fraud analysis
• Evidence collection for legal proceedings
  

Local Insight + Discretion = Better Outcomes

San Francisco is a unique environment for investigations. Its mix of high-tech professionals, dense neighborhoods, and fast-paced lifestyles makes it both complex and revealing—if you know where to look.

Bonnington PI’s investigators know the city’s rhythms—from SoMa and the Financial District to quiet areas like Noe Valley and Pacific Heights. We blend in, stay compliant with CA law, and maintain total discretion at every step.



Your identity and case details are never compromised. We operate under strict confidentiality agreements and keep every communication private.

Choosing the Right PI in San Francisco

Here’s what to look for when hiring a private investigation agency in San Francisco or anywhere in Northern CA:

• California BSIS-licensed investigators
• Clear communication and a written contract
• Transparent billing and case reporting
• Experience with the specific investigation type you need
• Verified testimonials and case results (shared confidentially)

Final Thoughts—The Truth Is Your Starting Point

When facing uncertainty—whether in a relationship, legal dispute, or business decision—having facts in hand can change everything.

At Bonnington PI, we bring local experience, legal compliance, and compassionate professionalism to every investigation. We’re based in Sacramento, regularly serve San Francisco and the Bay Area, and provide results you can trust.



📞 Ready to Speak With a Licensed Investigator?

Call us today at (916) 936-7773 for a free, confidential consultation.
Or request an investigation online.