This is taken from the amnesty website...2012
Torture and other ill-treatment
In March, the Court of Appeal of Evora confirmed an earlier ruling that Leonor Cipriano had been tortured while in police custody in 2004, but that it could not identify those responsible. Leonor Cipriano had yet to receive compensation from the state. Gonçalo de Sousa Amaral and António Fernandes Nuno Cardoso, senior officials in the judicial police, had been sentenced to 18 months’ and 27 months’ imprisonment respectively, for falsely claiming Leonor Cipriano had fallen down the stairs. However, both sentences were suspended on the grounds that the officers had no previous criminal convictions.
https://www.amnesty.org/en/region/portugal/report-2012
Gonçalo Amaral didn't push Mrs Cipriano down the stairs. He didn't even see someone pushing her down the stairs (see "the staircase" about the result of falling down stairs) without reacting. He didn't torture her nor saw someone do it.
He signed a document he shouldn't have signed without inquiring.
You call that "criminal" because your agenda is to discredit and despise Mr Amaral, just as Mrs McCann did it in her book.
Do you hope that discredit on Mr Amaral will bring Madeleine back ?
Or do you hope discredit will make the Judge order Mr Amaral to pay a lot of money to Madeleine's family ?