1.   But a senior administration official familiar with the grave sites warned that forensic evidence alone, while significant, is not enough to prosecute individual culprits.

2.   But officials with the Animal Rescue League of Boston, who plan to prosecute the culprit, who they have not yet identified.

3.   The onus of prosecuting the culprits should rest squarely on the shoulders of the Fisheries and Wildlife departments.

4.   But coming into force next year is a new law providing for a federal body in charge of preventing such offences and prosecuting culprits.