The Portable Police camcorder is designed for front line police officers to record their daily activities of law enforcement. It can capture, store and mark videos of enforcement. Readjusting the electronic parts and simplifying the design elements, which has made the product more concise and logical. One example is that the speaker holes are specially processed to be hidden by using the acoustic principle of direction. The front panel of the product is designed to be replaced one. This kind of design provides possibility of customization for different police departments with less engineering and manufacture costs. In respect of operation, we have changed the angle of the function buttons on sides of 5V. When a user raise arm to press the buttons, the arm and the buttons are in parallel. In this way, operation becomes easier and more convenient by increasing the contact area between fingers and the buttons.