Stalking has been in the spotlight recently thanks to the smash hit success of Netflix drama Baby Reindeer, which was created by and stars comedian and writer Richard Gadd.
Based on a true story, the drama highlights the act of stalking, and how it can affect both the victim and the stalker themselves.
Now an expert forensic psychiatrist has revealed some of the different types of stalkers – as well as explaining why just ignoring them may not necessarily make them stop.
Dr Sohom Das, 44, from London, has a YouTube channel called A Psych for Sore Minds, where he covers a range of mental health and crime-related topics.
He has made a number of short videos on the topic on stalking, including a clip from a recent appearance on This Morning when he spoke about the different drives behind stalking.