Speaking to Sky News, the scientist believes that the lamb in ready meal products needs to be tested.
The horsemeat controversy has so far primarily affected processed beef, leading to Environment Secretary Owen Paterson stating that all such products in the UK will be tested.
Most recently, the meat in Findus beef lasagne and Tesco spaghetti bolognese were revealed to have contained at least 60% horsemeat.
In both cases, the meat was produced in a Comigel factory in Metz, France.
Tesco stated yesterday (February 11): "The frozen Everyday Value Spaghetti Bolognese should contain only Irish beef from our approved suppliers. The source of the horsemeat is still under investigation by the relevant authorities."
Tesco Everyday Value Beef Burgers were also found to have been contaminated with horse DNA, while retailers such as Lidl, Aldi and Iceland have been affected, as well as Burger King.