When Kate Lines first applied for a job with the Ontario Provincial Police she remembers being told bluntly by a male officer that women have no place in law enforcement. It was a statement she'd go on to prove wrong time and time again.

Over the course of her 33-year career, Lines rose in the ranks from patrol cop to becoming the second Canadian ever to graduate from the FBI's elite criminal profiling program.

She also helped steer Canada's very first behavioural sciences section, and worked on several high profile murder and missing persons cases including those of Kristen French, Tori Stafford and Michael Dunahee.

Now retired, the former OPP chief superintendent runs her own private investigation business, and serves as a consultant for the TV dramas “Flashpoint” and “Rookie Blue.”

Significant moments from Lines' career are highlighted in her new book "Crime Seen – From Patrol Cop to Profiler."

Despite the naysayers when she launched her career, Lines soon realized that there were certain advantages to being a women on the force. She immediately realized this once she started working undercover, because criminals simply weren’t expecting a female officer.

"Some of those days I described as taking candy from babies, because it was just so uncommon for women to be working in that field," she said.

Throughout the book, Lines shares personal details about many of the families who've lost loved ones to crime.

She said it was very important for her to shine a light on these families, as they were often left to pick up the pieces after losing a family member.

She wrote the book to give them a voice, she said, noting that she got permission from each family to proceed with the project.

"It was not lost on me that their tragedies were going to be something that I was going to be sharing," she said.

Lines even visited all of the victims' grave sites before she started writing.

"I went to those locations and said a little prayer, and said 'I'll try and tell your story as best I can, but you will not be forgotten.'"

Lines said the process of writing the book allowed her to become emotionally involved with the families whose cases she worked on – something she was never allowed to do while in uniform.

"I missed that part of it," she said, adding that meeting with the families proved to be a cathartic experience.

"It was a really strong connection, and one in which you could allow yourself to be emotional about.

"It allowed me to have closure to my career."