History of police scanners Essay Example | Topics and Well Written Essays - 1000 words

History of police scanners - Essay Example In the modern era, the devices have helped in promoting security, and enhancing quick responses to emergencies. Additionally, police scanners play a crucial role in journalism and crime investigation centers. Therefore, through the application of the police scanners, the world has been compressed to a smaller area in terms of space and time. However, the evolution of police scanners has undergone tremendous changes since their invention. This essay will cover in details the history of police scanners. The idea of using receivers and transmitters began in the early 20th century where 2-way telegraphy traffic was in commercial use in the Atlantic Ocean. As early as the beginning of the 20th century, military and naval warships were applying the 2-way form of communication through the installation of both transmitters and receivers in the ships. Therefore, a two-way communication enabled ships that were apart in distance to communicate effectively. Australia.gov states that the Victorian Police were among the first sectors to invent portable 20-way radio in Australia in 1923; they installed the devices in police cars and used them to replace the previous telephone boxes that were cumbersome and at times inefficient in communication. However, the initial sets were also bulky and occupied large spaces. For instance, they occupied the entire back seat of the Lancia patrol cars. According to Scanner Master, police departments implemented the aid of tunable radio receivers to monitor police channels using a low frequency at the receiving end of the AM radio dial around 1700 KHz. They used this frequency to broadcast to their patrol cars regardless of the distance, and the communication equipment proved effective in transmitting signals. Police and fire departments used the FM radio channels that operated between 40 and 155 MHz in the 1960s, which motivated radio developers to develop scanners that could perform rapid tuning functions by

Human Trafficking Essay Example | Topics and Well Written Essays - 1250 words

Human Trafficking - Essay Example Human trafficking involves the exploitation bit in the sense that people are forced into prostitution, forced labor and receipt of services for no money whatsoever, slavery and even removal of different organs from the body. Children are also being used under the trafficking regimes since they form as the most vulnerable of human beings to attract and thus abduct them from their homes, schools and other areas of attachment. These children are used for begging purposes, in the form of recruitment of child soldiers, as child camel jockeys and as religious recruits for cult purposes. These indeed are the targets of the human trafficking processes and regimes. One must understand that human trafficking is somewhat different from people smuggling. What the difference is indeed is of the fact that in people smuggling, the individuals voluntarily ask the authorities to be sent across ports, in order to make their ends meet. Whilst human trafficking is a wholly different phenomenon since the human being under question does not even know where he is being transported and what will be done to him next. This is a complete case of abduction without letting any of the immediate family members know as to what is going to happen to the individual and what lies ahead for him in the future. In people smuggling, the smuggled person is set free when he reaches the new destination or port while in human trafficking, this seldom is the case. In most of the instances, the individual in human trafficking is enslaved and even the most basic of human rights is not granted upon this individual, let alone other aspects. Human trafficking is indeed full of rubbish stories and false promises which are made with individuals who will eventually be transported across lands, with the parents who do not know what future holds for their young ones, etc. For the individuals who are subjected