SIGNAL 99: Five times police have asked for serious backup

This is the vehicle that law enforcement officers said was used to try and hit them in the parking lot of the Hawthorn Suites By Wyndam Miamisburg/Dayton Mall South on Thursday, Jan. 26, 2017. (Courtesy/Phillip Severah)

This is the vehicle that law enforcement officers said was used to try and hit them in the parking lot of the Hawthorn Suites By Wyndam Miamisburg/Dayton Mall South on Thursday, Jan. 26, 2017. (Courtesy/Phillip Severah)

When police officers are in danger and need assistance, they call for a “Signal 99.”

That call over the scanner requests all available units to come to the aid of the officer — and it means multiple departments and dozens of cruisers from across the county can respond.

For example, when officers felt endangered by three men allegedly using a car as a weapon in the Hawthorn Suites parking lot in Miami Twp., officers fired and issued a “Signal 99.”

» MORE: 3 suspects ID’d, officer injured in Hawthorn Suites at Dayton Mall incident

In response, police from Dayton, Miami Twp., Miamisburg, agents with the FBI, troopers with the Ohio Highway Patrol and other area jurisdictions soon joined agents from the federal Bureau of Alcohol, Tobacco, Firearms & Explosives and the two drug units at the scene.

Here are five recent times police officers have dropped a “Signal 99.”

1. Officer injured in Miami Twp. “Signal 99” treated, released

In December, officers were first dispatched to the 6400 block of Woodsedge Court in Miami Twp. to assist with an unruly mental health patient. The man resisted arrest and fought for several minutes with officers, leading to police issuing a 'Signal 99' for countywide officer assistance, said Miami Twp. Police Sgt. Mike Siney. » READ MORE .

2. Clayton police issue “Signal 99” during nightclub incident

In October, multiple medics were requested to a "Signal 99" for county-wide officer assistance at Cognacs Lounge and Grill in Clayton. Officers requested the assistance call after shots were fired around 2:50 a.m. at the bar at 6504 North Union Road. » READ MORE .

3. Shots fired at undercover detective in Dayton

Police issued a "Signal 99" call for officer assistance in November following a report of shots fired at an undercover Dayton police detective. The officer was not hit. » READ MORE .

4. Man hit with Taser injured officer in struggle

In April, police were called to an apartment in the 5600 block of Hoover Avenue after a woman reported her child's father was banging on the door and came inside her home. Dispatch signaled a "99 call" for officer assistance after neither officer was responding to radio calls during the struggle. » READ MORE .

5. Standoff suspect said he’s ‘El Chapo Jr.’

During a police standoff, a man bragged he is "the biggest drug dealer in Dayton" and called himself El Chapo Jr. during live Facebook video posts, according to an FBI affidavit filed in federal court. The standoff developed after a "Signal 99" — officer needs assistance — was dispatched. » READ MORE .

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