Spy tools: What private investigators use to sleuth

Slideshow: Spy tools: What private investigators use to sleuth

By Joan Goodchild, Senior Editor

Covert surveillance requires extreme patience and the right gear. Here's a look at the products featured on PI Mall, an online resource for investigative professionals that offers items for gathering information without being detected.

Photo credit: PI Mall

Tiny Audio Recorder

According to PI Mall, this is the world's smallest high-grade audio recorder. Despite its size, it features high-quality sound and sensitivity for listening to conversations.

2 3 4 5 6 7 Next >

Tiny Audio Recorder

Inside the new World Trade Center's 'situational awareness' platform
A case study in connecting sensor input for faster incident identification and response

PSIM: physical security information management basics
What is PSIM and how will it improve your risk management?

Metrics for physical security programs
Leading CSOs identify operational measures that matter

Physical security risk and countermeasures: effectiveness metrics

7 deadly sins of building security

Buyers' guide to IP surveillance cameras | 2011 update: The march to megapixel continues

Six keys to executive protection

Organized crime and retail theft

Preventing workplace violence

Tiny Audio Recorder

Inside the new World Trade Center's 'situational awareness' platform A case study in connecting sensor input for faster incident identification and response

PSIM: physical security information management basics What is PSIM and how will it improve your risk management?

Metrics for physical security programs Leading CSOs identify operational measures that matter

Physical security risk and countermeasures: effectiveness metrics

7 deadly sins of building security

Buyers' guide to IP surveillance cameras | 2011 update: The march to megapixel continues

Six keys to executive protection

Organized crime and retail theft

Preventing workplace violence

Inside the new World Trade Center's 'situational awareness' platform
A case study in connecting sensor input for faster incident identification and response

PSIM: physical security information management basics
What is PSIM and how will it improve your risk management?

Metrics for physical security programs
Leading CSOs identify operational measures that matter