No politics at 'government buildings'?

UNC candidate, Mr Jack Warner, has questioned the late withdrawal by the management of the National Library and Information System Authority (NALIS) of its permission to use NALIS’s Port-of-Spain branch for the People's Partnership manifesto launch today at 10:30 a.m.  He claimed that the permission was withdrawn after NALIS accepted the UNC's formal application for the use of its facilities, and after NALIS accepted the UNC's (or Mr Warner's) cheque for the full rental fee of $3,500.

According to NALIS's press release, issued after 4:00 p.m. yesterday by its public relations officer Debbie Goodman:

"... the withdrawal of the use of the Audio Visual Room is in keeping with the established principle on the use of government buildings, during an election period (between nomination day and election day).  [The time indicated for the event would] severely disrupt the normal functioning of the library and the offices in the National Library building.  We wish to inform you that your request to host a media conference to launch the manifesto of the People’s Partnership cannot be accommodated at this time.  Any inconvenience caused is regretted in the circumstances."

I have several questions.

Firstly, I need to know what's the definition of a 'government building'.  Is it a building owned by the government?  Is it one leased by the government?  The importance of this definition unfolds below.

Secondly, I couldn't find any record online of this rule which denies the use of government buildings by political parties during the election period (as defined above).  So where exactly is this 'principle' or rule established, as claimed by Ms Goodman?  NALIS's website includes a few policies and procedures, but no detailed terms of use for the facilities available for rent by the public, and no link to a central government policy regarding acceptable use of government buildings.  Its description of the National Library Building states:

"... the National Library makes available for public use at a minimal fee, its Audio Visual Room with seating capacity for 100 persons, the Amphitheatre with seating accommodation for approximately 440 persons, its multipurpose lecture rooms, and spiraling cylindrical atrium with skylight - great for exhibitions!"

Thirdly, if this rule applies to all government buildings, and the scope of government buildings includes those owned or leased by the government, then how come the PNM was able to launch its manifesto at the Hilton Trinidad Hotel and Conference Centre?  The Hilton Trinidad is currently leased to the state-owned agency Evolving TecKnologies and Enterprise Development Company Limited (known as e TecK).  This is publicly stated on e TecK's website, along with descriptions of its work completed last year on the upgrade of the hotel's infrastructure in the run-up to the Commonwealth Heads of Government Meeting (here, here, here and here).  e TecK is the same company that manages the NAPA Hotel, as announced last November.  So, if Hilton Trinidad is operated by e TecK - and is thus a government building - how was the PNM able to rent its facilities to host its manifesto launch on 11 May 2010 (i.e. during the election period)?

Fourthly, what's the danger to these buildings that exists specifically during the election period?  Are political parties allowed to rent the state-owned facilities outside the election period?  What is the principle underlying the need to deny them use of government buildings during an election period?

Fifthly, how come NALIS didn't conclude that the event would "severely disrupt the normal functioning of the library and the offices in the National Library building" before initially approving the UNC's rental application and accepting the UNC's payment in advance?

Lastly, is the underlying principle limited to buildings or does it extend to other public assets?  If it's wrong to use government buildings for political events during the election season, why is it right to use the Queens Park Savannah (a protected national park managed by the Horticultural Services Division of the Ministry of Public Utilities and the Environment) for the PNM's youth rally on 15 May 2010, or rent PTSC buses to transport its supporters to and from political events during the election period?