"Gee, Jim. I don't know. Where have all the good men gone?"
If those samples were found in the post by officials on their way to foreign laboratories, the French men who sent them could theoretically face a year in prison and a 15,000 Euro fine. This year the ban was challenged but the French Government decided to uphold and maintain the anti-paternity testing law.
The reasons for which the Government said the ban should remain were related to the preservation of peace within French families. According to some online articles, Germany, has also banned (or plans to ban) paternity testing for similar reasons. French psychologists suggest that fatherhood is determined by society not by biology...
The argument against allowing paternity testing in France is directly opposed to the argument for allowing it almost everywhere else. While French Authorities believe that paternity testing can cause friction within families, some fathers find that getting rid of any doubt relating to their relationship with their child can help strengthen the bond they have with them, instead.
In cases where their paternity has been verified, the child could actually get to know who their 'real' biological father was and many people believe that is important. So, rather than causing disputes, paternity testing in France could actually settle them. Now that the ban has been upheld, French fathers are likely to continue breaking the law in an effort to discover whether children in their care are biologically theirs.