Brueckner claimed in a letter to German investigative Journalist Jutta Rabe that he had never been caught because he kept a low profile when moving around to avoid the attention of the police. https://www.nzherald.co.nz/world/madeleine-mccann-suspect-christian-brueckner-sends-open-letter-over-abduction-claims/FW6CTZZJZ2UBV43NHIP6TIXGBM/ - he only drove during the day whenever possible
- choosing his route with care when driving around
- being careful not to draw police attention to himself
- therefore not committing any crimes particularly that of abduction
His claims don't hold water as far as I am concerned unless he only committed his crimes in areas which were within walking distance; and I imagine drug trafficking over Europe would be difficult without breaking his rules.
He certainly didn't bother about not drawing attention when he exposed himself to the children in the playground and had to be rescued from the wrath of a couple of dads by an off-duty police officer. https://www.eseracingoe.com/the-policeman-who-was-guarding-madeleine-mccanns-apartment-caught-the-prime-suspect-10-years-later/
It's a nonsensical argument he's trying to make. If CB's motives for taking Madeleine were driven by perverted desires, then consideration over drawing attention to his drug dealing wouldn't even come into it. The drug dealing is driven by the desire to earn money, same as the burglaries. His abuse of children is driven by a sexual compulsion.
Besides, abducting/murdering a child is a far more serious crime than selling weed, whatever the motive. Nobody is going to be logically thinking - "I better not commit this crime that could land me in jail for life, just in case they find out about my weed business which might land me 2 years tops!"
The logic he is trying to use can only really be applied to avoiding "petty" crimes, for fear of drawing attention to the "worse" crimes you were committing.
So, in order to avoid drawing attention to your vehicles and criminal activities, "petty" crimes someone might reasonably be expected to steer clear of would include things like - driving without insurance, driving without a valid licence, driving with illegal registration plates, driving while under the influence... Incidentally, these are all things that CB has also been convicted for... Which just goes to show how full of crap he is.