activator - (biology) any agency bringing about activation; a molecule that increases the activity of an enzyme or a protein that increases the production of a gene product in DNA transcription. 1  substance - the real physical matter of which a person or thing consists; DNA is the substance of our genes.
In 2006, in cases where police officers intentionally fired a gun at a person, they discharged 364 bullets and hit their target 103 times, for a hit rate of 28.3 percent, according to the departmentâs Firearms Discharge Report. The police shot and killed 13 people last year. In 2005, officers fired 472 times in the same circumstances, hitting their mark 82 times, for a 17.4 percent hit rate. They shot and killed nine people that year.
According to the FBIâs Law Enforcement Officers Killed and Assaulted (LEOKA) data, the average age of all law enforcement officers killed accidentally in the LOD in 2009 was 35 years old, with an average of 9 years of service. 8.3. By comparison, 61 officers were shot and killed in 2010âan increase of nearly 25 percent from the prior year. According to data from the NLEOMF, for the prior 10 years, an average of nearly 57 officers died each year as a result of a firearms-related incident.