Animated Knots by Grog is a great app that teaches you to tie all kinds of handy knots. This is the first app we’ve reviewed to earn five Black Turtlenecks using our rating system! What It is: ...

There is no mention of handcuffs in the book. Instead it has an entire section devoted to rope tying techniques. Some of the rope techniques used on suspects are elaborate, as seen in this ...

When you purchase through links on our site, we may earn an affiliate commission. Here’s how it works. A book written by samurai in 1888 reveals martial arts practices for police of the day. These ...

A newly translated 19th-century book, written by samurai, describes martial arts techniques designed to help police officers of the time. The highly guarded practices included how to tie suspects up ...