Babyshambles frontman Pete Doherty has been visited by animal welfare authorities amid reports he forced his pet cat to smoke crack cocaine. Friends leaked a picture of the incident to British newspaper The Sun in September (07), which showed the rocker appearing to hold a miniature pipe against the creature's mouth. The 28-year-old singer has vowed to remain clean after pictures emerged of him injecting heroin last month (Nov07) - but the Royal Society for the Protection of Cruelty to Animals (RSPCA) is still closely monitoring the pet's health after it was rushed to a clinic and found to have ingested cocaine in August (07). Jake Foir, Doherty's music producer, says, "The RSPCA came last week, so this week they've been getting posh cat food from (supermarket chain) Waitrose."