New York Consolidated Laws, Public Officers Law - PBO § 105. Conduct of executive sessions

a. matters which will imperil the public safety if disclosed;

b. any matter which may disclose the identity of a law enforcement agent or informer;

c. information relating to current or future investigation or prosecution of a criminal offense which would imperil effective law enforcement if disclosed;

d. discussions regarding proposed, pending or current litigation;

e. collective negotiations pursuant to article fourteen of the civil service law;

f. the medical, financial, credit or employment history of a particular person or corporation, or matters leading to the appointment, employment, promotion, demotion, discipline, suspension, dismissal or removal of a particular person or corporation;

g. the preparation, grading or administration of examinations;  and

h. the proposed acquisition, sale or lease of real property or the proposed acquisition of securities, or sale or exchange of securities held by such public body, but only when publicity would substantially affect the value thereof.