Noun
A pole tool used for handling things too far away to reach.
(idiomatic) Influence; far-reaching power.
the long arm of the law
A gun with a long barrel, such as a rifle or shotgun.
A quilting machine that holds the fabric stationary on long rollers but allows the sewing mechanism to move around the surface of the fabric.
Source: en.wiktionary.orgWho's promoting the Bill? These are people in the current Government who participated in the 2000 coup. Some have been convicted, others are facing trial, there are still others left whom the long arm of the law should get at. Frank Bainimarama
In Tarzan's clever little mind many thoughts revolved, and back of these was his divine power of reason. If he could catch his fellow apes with his long arm of many grasses, why not Sabor, the lioness? Edgar Rice Burroughs
I love you, Jonathan," she whispered. A long arm snaked around her, and he pulled her against his side. "I know," he said. "I just wanted to be sure you knew it, too. Tamora Pierce
Interpol was set up to catch fugitives, not act like the long arm of Putin going after his enemies. Bill Browder
Once upon a time, my mother lived in the posh downtown of Homs, Syria. She described my grandfather as a king in a storybook, atop a horse, wearing a didashah and pointing a long arm. Mona Simpson
Money wins the battle, not the long arm. Portuguese Proverb