Keywords: addiction; AOD use, abuse, and dependence; AOD consumption; AOD effects and consequences; AOD abstinence; AOD overdose; information acquisition; chemical addiction; heroin; cannabis; morphine; methadone; opioids in any form; naltrexone; buprenorphine; cocaine; amphetamines; MDMA; hallucinogens; psilocine and psilocybine in any form; mescaline; fentanyl; laws and regulations; relapse prevention; Germany