have (double) standards
The German phrase 'doppelte Moral haben' directly translates to 'have (double) moral'. It is used to describe someone who has two different moral standards, one for themselves and one for others. This phrase is often used to criticize hypocritical behavior.
Politicians are often accused of having double standards.
This sentence implies that politicians are frequently accused of acting in a way that contradicts the moral standards they profess to hold, hence having 'double standards'.
She complained that her mother had double standards because she expected behaviors from her children that she did not maintain herself.
In this sentence, the person is complaining about their mother's behaviour, who expects her children to behave in a certain way which she herself doesn't uphold, hence the term 'double standards' is used.
He was accused of double standards when he asked his employees to work overtime, while he left early himself.
Here, the person is being accused of 'double standards' because he is not keeping up to the expectation he's setting, he is asking his employees to work overtime but not doing the same himself.