BrownÂ·iÂ·an motion. n. The random movement of microscopic particles suspended in a liquid or gas, caused by collisions with molecules of the surrounding medium. Also called Brownian movement. [After Robert Brown .].rownian motion-the random motion of small particles suspended in a gas or liquid. Brownian movement, pedesis. motion, movement-a natural event that involves a change in the position or location of something. 1  Facebook.
Fullerton, CA Police patch. The Fullerton Police Department of Fullerton, California, was established in 1904 when the city incorporated. The Fullerton Police Department currently employs 153 sworn officers and 78 civilian employees.
In 1789 the U.S. Marshals Service was established, followed by other federal services such as the U.S. Parks Police (1791) and U.S. Mint Police (1792). The first city police services were established in Philadelphia in 1751, Richmond, Virginia in 1807, Boston in 1838, and New York in 1845. The U.S. Secret Service was founded in 1865 and was for some time the main investigative body for the federal government.