A London Business School professor was forced to install a panic alarm in his office after being stalked for more than a year by a woman who saw him speak at a careers event, a court heard.

Alex Edmans, 38, who has spoken at the World Economic Forum in Davos and in Parliament, said he became too distressed to answer his phone after he was followed by Zhaoyan Li.

Li, 40,visited Mr Edmans at his church and also turned up at his gym after meeting him when he spoke at a careers seminar at PricewaterhouseCoopers (PwC).

She also booked a holiday to follow him to Lanzarote and bombarded him with texts, emails and calls.

The 40-year-old, of Canary Wharf, east London, was convicted of stalking Professor Edmans between February 1, 2017 and September 13, this year at City of London Magistrates Court.