Libraries occupy a unique position in society as guardians of both access to information and the privacy of those who seek it. The American Library Association's Code of Ethics states that librarians protect each library user's right to privacy and confidentiality. At the same time, libraries face practical challenges that sometimes require identity verification: vetting authors and speakers for events, addressing patron behavior that raises security concerns, and managing situations where identity fraud is suspected. Reverse face search technology presents both opportunities and challenges for the library profession. This comprehensive FAQ guide explores how librarians can use face search tools like facesearching responsibly, balancing the practical benefits of identity verification with the profession's unwavering commitment to patron privacy and intellectual freedom.
The Librarian's Dilemma: Security and Access vs. Privacy
Libraries are among the most trusted institutions in American society, and that trust is built on a foundation of privacy protection. Unlike commercial entities that collect and monetize user data, libraries have a long history of resisting surveillance and protecting patron records. The introduction of any new technology, including face search, must be evaluated against this professional commitment. The key question for librarians is not whether face search technology works, but whether its use is consistent with library values. The answer depends on how it is used. Face search applied to verify the identity of a paid speaker for a library event is very different from face search applied to monitor patrons. The former is a reasonable business practice; the latter is a violation of library ethics. This guide emphasizes responsible, limited use cases that align with professional values. For more on the ethical dimensions of face search, see our guide on the ethics of using face search for personal investigations.
How Reverse Face Search Technology Works
A reverse face search engine like facesearching works by analyzing the unique facial geometry of a person in a photograph and matching it against publicly indexed images across the web. The technology searches social media platforms, news sites, professional directories, and other public web sources to find where the same face appears. For librarians, understanding how the technology works is important for making informed decisions about its use. The search is based on publicly available information only, and reputable platforms like facesearching delete uploaded photos after the search completes. The technology does not access private databases, government records, or any information that is not already publicly accessible on the internet. For a more detailed technical explanation, read our guide on how accurate is face search technology.
Appropriate Use Case: Verifying Event Speakers and Presenters
One of the most appropriate uses of face search in a library setting is verifying the identity of paid speakers, authors, and presenters before booking them for library events. Libraries invest significant resources in programming, and a fraudulent speaker who misrepresents their credentials, publication history, or expertise can damage the library's reputation and waste public funds. An author who claims to have published multiple books, a speaker who claims specific academic credentials, or a performer who claims a certain professional background should be verifiable. Running a face search on the speaker's publicly available profile photo can confirm whether their digital footprint aligns with their claimed identity. This is a standard business practice, similar to reference checking, and does not raise the same privacy concerns as patron monitoring. For more on verifying professionals, see our guide on how to verify a remote employee's identity with face search.
When Identity Verification May Be Necessary for Patrons
There are limited circumstances where patron identity verification may be appropriate, but these should be handled with extreme care and guided by clear policies. Examples include: a patron who is suspected of using multiple library cards under different names to circumvent borrowing limits or evade fines, a patron whose behavior has raised security concerns and who may be using a false identity, or a patron who has been banned from the library and is suspected of attempting to re-enter under a different name. In these cases, face search should be used only after other methods have been exhausted, only with supervisor approval, and only as part of a documented investigation. It should never be used for routine monitoring or as a general security measure. The library's commitment to patron privacy means that face search is a tool of last resort, not a standard practice.
Developing a Library Face Search Policy
Any library that decides to use face search in limited circumstances should develop a written policy that governs its use. The policy should specify: the specific circumstances under which face search may be used, who is authorized to conduct face searches, what documentation is required before and after a search, how results are stored and for how long, how patron privacy is protected throughout the process, and how the policy aligns with the ALA Code of Ethics and applicable laws. The policy should be developed with input from library leadership, legal counsel, and the library's board or governing body. It should be reviewed and updated regularly. Transparency is important: the policy should be available to the public, and patrons should be informed when face search has been used in a matter that concerns them, consistent with the needs of any investigation.
Privacy Protections: The Non-Negotiable Foundation
For librarians, privacy protections are not optional features; they are the foundation of the profession. Any use of face search must be consistent with this commitment. Choose a face search platform like facesearching that prioritizes privacy: photos should be deleted after the search, only publicly available information should be searched, and the platform should have transparent data handling practices. Never use patron library card photos or any photos obtained through the library's systems for face search. Only use photos that are publicly available, such as those on social media profiles or professional websites. Never use face search to investigate a patron's reading habits, political views, religious beliefs, or any other protected characteristic. The library's historic role as a defender of intellectual freedom and privacy must guide every decision about technology use.
Training Staff on Responsible Face Search Use
If a library decides to authorize limited face search use, staff training is essential. Training should cover: the library's face search policy and when its use is authorized, the ethical considerations specific to libraries, how to use the face search tool correctly, how to document searches and results, how to protect patron privacy throughout the process, and the legal and professional consequences of misuse. Staff should understand that unauthorized use of face search is a serious violation of library policy and professional ethics. The training should be mandatory for any staff member authorized to conduct face searches and should be refreshed periodically. A culture of privacy protection should be reinforced at all levels of the organization.
Alternatives to Face Search for Libraries
Before resorting to face search, librarians should consider alternatives that are more consistent with library values. For verifying event speakers, traditional reference checking, reviewing publication records, and contacting the speaker's publisher or agent are effective and privacy-respecting methods. For patron identity concerns, improved library card issuance procedures, requiring photo ID for card issuance, and maintaining clear policies about card use and borrowing limits can prevent many problems before they arise. For security concerns, trained security personnel, clear behavior policies, and community partnerships with local law enforcement (where appropriate) are often more effective than technological solutions. Face search should be seen as a supplementary tool of last resort, not a primary solution.
Libraries have navigated the tension between service and privacy for generations, and face search technology is simply the latest chapter in that ongoing story. By using the technology thoughtfully, sparingly, and in ways that align with professional values, librarians can benefit from identity verification capabilities while maintaining the trust that makes libraries essential institutions in their communities. Ready to learn more about responsible face search? Explore facesearching now and see how privacy-conscious face search can work for your library.