Detectives in several cities investigating Harvey Weinstein for sex crimes are likely to be collaborating as they build evidence and assess whether the film producer can be arrested and charged, experts believe.

Investigators in New York, London and Los Angeles have opened criminal cases against Weinstein in the last six weeks, as the disgraced producer faces lawsuits on both sides of the Atlantic following a flood of accusations of sexual misconduct.

Los Angeles police department (LAPD) detectives have interviewed witnesses in preparation for presenting a case to the district attorney’s office. The DA will then decide whether to press criminal charges over accusations that Weinstein raped an unnamed actress in a hotel in Beverly Hills in 2013, according to David Ring, a lawyer for the alleged victim.