Men of Consequence by Geoffrey Robinson
A slow burn crime thriller ensues after Kelly witnesses a minor robbery which develops into a full-blown vendetta on the part of one crook to prevent her from testifying. The police do what’s within the law to protect her; it isn’t enough. Her father and his long retired Special Operations friends decide the time had come to take Kelly’s safety into their own hands and convince the crooks the price for threatening her life could be far greater than anything they’d bargained for.