In the absence of knowing what the evidence against him is, I have an open mind as to his guilt. If the evidence is of sufficient quality to allow him to be charged and brought to trial regarding offences against Madeleine McCann, a fair trial will satisfy me whatever the outcome is.
My gut reaction as an internet sleuth is that he definitely has a case to answer. But he already has five cases to answer all for serious crimes before he reaches that stage regarding Madeleine.
Of note is the fact that the recent case of a serving police officer who committed murder was preceded by incidences of him indulging in indecent exposure.
Brueckner has been found guilty of such an offence involving a child and will stand trial when two other offences of that nature will be considered. 'Flashing' is seen as indication that the offender is capable of escalating to even more serious criminal offenses. It is right and proper that the law investigates that propensity.