There are also three types of law enforcement agencies; local, state, and federal. All three types of law enforcement jobs are utilized at all three government levels of law enforcement agencies. Police and detectives held about 861,000 jobs in 2006.Seventy-nine percent were employed by local governments.here are also three types of law enforcement agencies; local, state, and federal. All three types of law enforcement jobs are utilized at all three government levels of law enforcement agencies. Police and detectives held about 861,000 jobs in 2006. Seventy-nine percent were employed by local governments.
Sensimetrics produces the program Seeing and Hearing Speech. The company promotes its software as suitable for either professional instruction, or independent self-study. To help people learn to read lips, the software provides three different learning environments: with and without sound or visual cues. Learners are also taught how to identify which words are being stressed in speech.
The severely deaf rely primarily on lip-reading, even with a hearing aid. Profoundly deaf people may communicate by lip-reading, and Sign Language may be their first or preferred language. Hearing loss occurs primarily when the inner ear or auditory nerve is damaged or when sound waves cannot reach the inner ear.