Item 8.01. Other Events

Life Sciences Research, Inc. (the "Company") reports the filing of a purported class action lawsuit against the Company in connection with the March 3, 2009 non-binding proposal made by Andrew Baker to acquire all of the outstanding shares of the Company for $7.50 per share (the "Baker Proposal"). The Company obtained a copy of the complaint on March 10, 2009, but to the Company's knowledge the complaint has not been served on any of the defendants.

The Company's Board of Directors has established a special committee of independent directors to evaluate the proposal. The process of considering the Baker Proposal is only in its beginning stages, and consequently the special committee has not made any decisions in respect of the Company's response, if any, to the proposal.

The lawsuit, which purports to have been filed on March 9, 2009 in Superior Court of New Jersey, Chancery Division, Somerset County, names as defendants Mr. Baker, all other members of the Company's Board of Directors and the Company. The complaint alleges, among other things, that the directors breached their fiduciary duties with respect to the Baker Proposal. The Company will respond appropriately to the lawsuit, if served.

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