Cambridge University was set to face criminal charges this week for losing a package of radioactive material. As The THES revealed in December last year, the Health and Safety Executive has been conducting investigations into the university's failure to account for the material, a small sample of a low-level radioactive phosphorus used in DNA research. The HSE was expected to take a decision to prosecute for a breach of 1985 Ionising Radiations Regulations this week. The Environment Agency has also been investigating for a breach of the Radioactive Substances Act, 1993.