Article about Paternity Fraud in the Canada's most populous province, Ontario.
This is an article containing analysis by an experienced, well published, Ontario lawyer whose practice is
restricted to family law. These 2 recent paternity fraud cases were in the Ontario Court of Justice. The article
was submitted to the Law Times, a Canadian publication for lawyers.
Take a look at the judgements by Madam Justice June Maresca versus Mr Justice Peter R. W. Isaacs at the bottom
of this web page.
Editor's note: The Globe and Mail newspaper referred to in the article below is Canada's largest and most
trusted national newspaper.
Paternity Fraud in Ontario, Canada
Two recent cases demonstrate the need for counsel awareness and legislative action
By Gene C. Colman, May 22, 2005, Law Times magazine
of Canada. Gene Colman's website is www.4famlaw.com
Two recent cases demonstrate the differing attitudes to paternity fraud on the part of the judiciary. What is
paternity fraud? Paternity fraud occurs where the biological mother knows (or has good reason to believe) that the
“father” is not really the biological father, yet she chooses to mislead him as to his (non-existent) role in the
conception of a child. When the father finds out the truth (and this inevitably occurs after a period of time when
the father has treated the child essentially as his own child), he may choose to apply to the court to cancel any
existing child support order. Courts have not been consistent in their approach to this challenge.
In her article entitled, “Mommy's little secret”
published in the 14 December 2002 edition of The Globe and Mail,
medical columnist Carolyn Abraham reviews much of the literature and reports on her conversations with some key
people in the field. She reveals some astonishing statistics from apparently reliable sources. The bottom line is
this: Paternity fraud appears to occur in somewhere between 5% and 15% of cases. In the case of one science class
project in Britain (that was not directed towards the issue of paternity fraud but rather to genetics and blood
types), it was unexpectedly discovered that 30% of the kids’ dads had been duped as to paternity! The Globe and
Mail article along with a plethora of other sources can be found at
Justice June Maresca released her reasons on March 11, 2005 in the case of B.B.
v. C.P.B.,  O.J. No. 1209 (O.C.J.), (Brampton, Ontario registry No. 579/03.) The case report says the
parties were married in 1998 and separated in 2001 but that there were thirteen years of marriage. (Therefore, it
would appear that “1998” should read “1988”. This may be significant given Justice Maresca’s emphasis on the
importance of the children’s own perceptions of their relationship with their psychological father.)
In B.B., the father argued that had he known the true state of affairs from the outset that he would never have
never formed a “settled intention to treat the children as his own”. (See the [Ontario] Family Law Act,
section 1 definition of parent: ““parent” includes a person who has demonstrated a settled intention to treat a
child as a child of his or her family…”.) Justice Maresca cites legal authorities of other courts that supported
the father’s argument. Yet Her Honour also refers to the Supreme Court of Canada decision in Chartier v. Chartier,
 1 S.C.R. 242, 235 N.R. 1, 134 Man. R. (2d) 19,  4 W.W.R. 633, 193 W.A.C. 19, 168 D.L.R. (4th) 540, 43
R.F.L. (4th) 1,  S.C.J. No. 79, 1999 CarswellMan 25 (S.C.C.) where the issue was not biology at all but
rather, whether the fellow who had fulfilled the role of psychological father could unilaterally withdraw from the
paternal role that he had previously voluntarily assumed. In any event, Justice Maresca, while she admits that the
facts in Chartier “are very different from the facts of this case” (paragraph 15), nonetheless proceeds to rely
upon Chartier to come to the conclusion that once a father, always a father. Accordingly, this “father” was not
able to avoid the child support claim.
Justice Peter R.W. Isaacs of the same court (albeit presiding in Woodstock) reached the opposite conclusion in a
decision released on March 1, 2005: K.L.B. v. J.M.,  O.J. No. 998 (O.C.J.),
(Woodstock Ontario Registry No. D257/01). The parties had resided together only for two and one half months for
some time before the child was born. Unlike Justice Maresca’s case, the “father” had never resided with the mother
after the child was born. The child was born on 4 May 2001 and the “father” certified the child’s birth
registration and consented to an order dated 20 December 2001 wherein he was granted joint custody and paid child
support. However, notwithstanding his nagging doubts about paternity dating back even to December 2001, the
“father” waited until October 2002 to surreptitiously have genetic testing carried out. The result was that he was
not the father at all.
Faced with the test results, the mother then confessed to having been raped and withholding that information
previously. The “father’ immediately terminated all contact with the child and promptly moved at the outset of
2003 to have his child support obligation cancelled.
Justice Isaacs seemed to be somewhat miffed with the “deceit” practised by the mother. His Honour wrote at
This withholding of important information related to paternity would amount to deceit to the extent that the
case law considers sufficient in order to rescind any obligation of paying child support.
And at paragraph 23, His Honour wrote:
The mother's omission of disclosing all relevant information about conception in the face of the respondent's
questions is tantamount to deceit. She perpetuated that falsehood allowing the respondent to assume
responsibilities that he might have rejected if he had known the truth. She did this despite his repeated and
ongoing questions about paternity. He was forced to take unilateral action to provide some certainty about
paternity and, since learning the truth and being advised as to his legal rights, he has ceased all contact with
In the result, the support order was cancelled going forward but because the “father” was found to have delayed
somewhat when he previously had his suspicions about paternity, His Honour would not order any repayment of the
interim support order and the judge declined to make a costs order in favour of the “father”.
These two March 2005 decisions, both from the Ontario Court of Justice,
simply cannot be reconciled. This writer suggests that one of those cases has to be legally incorrect. Yet, from a
strictly humanitarian policy perspective, one could argue that a thirteen-year track record (as in Justice
Maresca’s case) would militate in favour of fixing such a “father” with continuing liability. On the other hand,
Justice Isaac’s decision addresses the situation of the “father” taking action as early as seventeen months after
the child’s birth and where the time was so limited, policy might dictate a more lenient approach with such a
However, fraud is fraud. What is the correct legal manner in which we are to apply the [Ontario] Family Law
Act’s approach to “settled intention”? The Canadian Children's Rights
Council maintains that there should be government paid mandatory non-invasive paternity testing at twelve
weeks into a pregnancy.
Letting every parent know the actual biological truth at a very early stage is one option. There are others. This
writer suggests that we do require public discussion as to the most fair and humane way to address paternity fraud
and that the legislature should take up the challenge in order to provide the courts with more definitive
The actual judgements are on this website for you to read.
To read the judgement of Madam Justice June Maresca
Note the biased case description published with this judgement on the website of the
Canadian Legal Information Institute which states:
"SUPPORT ORDERS - Entitlement - Child - Demonstration of settled intention to treat child as family member -
Elements of "settled intention" - Irrelevance of mistaken perception of biological paternity -
Fact that mother had, whether consciously or inadvertently, deceived husband into believing
that children born into marriage were his biological offspring is irrelevant - What matters is bonding
relationship that existed at time that family was functioning as unit where husband had treated children as his
own rather than whose DNA is lodged in children's genes - Admittedly, he might have made different
decision if aware of true facts at time of children's birth but, after years of emotional bonding, shared memories
and trust, he should not now be allowed to "backdate" his decision to weasel out of only
father-and-child relationship that children had ever known - Concept of "settled intention" should not
ignore reality of all the ways that fatherhood matters in children's lives - Despite mother's deception, court
found that husband had demonstrated settled intention to treat children as his own and was therefore obligated to
To read the judgement of Mr Justice Peter R. W. Isaacs
"SUPPORT ORDERS - Entitlement - Re-assessing entitlement at variation hearing - Revisitation of issue of
paternity - Despite mother's assurances that he was child's father, respondent had always had his doubts -
Unbeknownst to her, he used one access visit to secure serological tests of himself and child whose results
precluded his paternity - Upon being confronted with results, mother admitted that she had all along concealed
possibility that he might not be child's father - Respondent made motion to terminate his support obligation on
basis of this fresh evidence that mother did not dispute, but she did argue that respondent's liability for child
support should continue because he had demonstrated settled intention to treat child as his own - Court rejected
mother's argument because any demonstration of settled intention had be informed decision - In this case, settled
intention was based on mother's deceit and respondent had done nothing since learning truth to reinstate that
intention - Court terminated respondent's duty to make further support payments but did not make any order
requiring mother to repay past support."