Dangerous behaviour

My daughter was driven by Johannes driving green kwid reg LJ61NXGP she drooped her at the location and then an hour 2 hours later when my daughter comes home she called me at gate sayin' same guy is at gate asking for her number, this is really stoking , we now don't feel safe for our daughters safety because if this guy can wait at my house to get numbers what else is he capable of, will he sit at gate and abduct my daughter, can he be called to book because now we watching him and he must also watch himself