At least in Germany it seems storing records for up to 6 months is common, since that's when the deadlines for suing under discrimination law expire and an empl

At least in Germany it seems storing records for up to 6 months is common, since that's when the deadlines for suing under discrimination law expire and an employer has a legitimate interest in being able to produce detailed documentation about their decision process to defend against such lawsuits. But that's again a very specific thing that justifies it.