Training and Education
Private Investigator – Licensed PI (4 night) Refresher course
November 15-18, 2010
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Private Investigator Training
September 22-29, 2010.
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ISN Investigative Interviewing - September Course
September 29 - October 1, 2010.
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Private Investigator – Surveillance Course
October 11-14, 2010.
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ISN Investigative Interviewing - October Course
October 27 - 29, 2010.
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Private Investigator Training
October 30 - November 14, 2010. Part-time Evenings & Weekend PI Course – 4 evenings (6-10pm) and 6 weekend days
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Private Investigator Training
November 22 - 28, 2010.
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Our Team
The ISN team is led by Dave Perry who has 27 years of police experience retiring as one of the most recognizable and successful investigators in the Toronto Police Service. In his distinguished career he has worked on some of the largest and most sensitive investigations in the country. He has been called on to speak and make presentations in a variety of forums including international conferences.Learn More >>
Testimonials
Dave Perry has supported the work of Child Find Ontario for close to 20 years. He has assisted in the training of our volunteers and staff and most importantly, he has been an advocate and a voice for missing children and their families.Learn More >>
Staff Login
Ron Wretham, President
Ron Wretham draws upon 30+ years as a decorated law enforcement professional with the Toronto Police Service, to meet a wide range of investigative needs, at Investigative Solutions Network, from the routine to the complicated, and especially when the matter is complex, sensitive, or involves a very high-stakes matter. Regarded as a strong leader, Ron has earned the respect from superiors, peers, and subordinates, as exhibited by several honours, including the Harold Adamson Police Officer of the Year Award.
Ron progressed through the ranks of the Toronto Police Service, from uniformed patrol to uniformed Staff Sergeant and Platoon Commander, leading a platoon of uniformed members in a division charged with the security and safety of over 200,000 community members. Ron was accountable for leadership, performance, discipline, mentoring, compliance, budget issues, and policy writing.
During his tenure at the Toronto Police Service, Ron coordinated, developed, and executed educational programs for the private sector and the police community. He co-chaired the Toronto Police Service Core Values and Mission Statement Committee with former deputy Chief Michael Boyd, served as member of the elite Emergency Task Force, Special Weapons Team, and the Drug Squad where he worked as an undercover operative and team leader. Ron served as a Detective and a Detective Sergeant in downtown Toronto where he lead 105 detectives and undercover police officers. Ron also planned and coordinated critical incident response plans for countless high-profile events, including the G7 Economic Summit, Major League Baseball All Star Game and numerous Caribana events.
Upon retiring from the Toronto Police Service and joining ISN as Vice President of Operations, Ron's presence has been immediately felt. Within the first six months alone:
Ron established policies, procedures, and operating regulations in report writing, equipment issuance and return, financial compensation to associates, and customer relations;
Conceptualized and created an in-house mobile surveillance team, and Retail Loss Prevention/Asset Protection Branch; and
Was featured as a "crime expert" on Global television during an interview with reporter Catherine MacDonald, in August 2007.
Ron continually strives to exemplify the core principles of honesty, integrity, fairness, respect, reliability, teamwork, and positive attitude, personally and professionally. It is these traits coupled with his high level of emotional intelligence (E.Q.) and his impressive résumé that exemplifies what ISN stands for and makes Ron a key member of the ISN team.
Download Ron Wretham's Resume >>
No matter what your problem or need ISN will find a solution that will work for you using
the best people, the best methods,
achieving the best results.




