Just browsing facebook and came across this post from Irish History and Troubles about Gerry Adams being a Mi5 spy.. This accusation dates from 2014, you can see the article on Belfast Telegraph website here .
The report alleges that Gerry Adams was turned in 1972 during a Police interrogation and worked secretly for Mi5 since then. The RUC/ PSNI made this claim when Mr Adams was arrested in 2014 over the Jean McConville killing, Mr Adams was held by the Ruc/PSNI for four days. Accusations like this are not uncommon in this regard. Rumor has it that at least half of the IRA worked for the security forces. Working for the security forces would make alot of things add up- why all the constant “mistakes” that ended up being a propaganda victory for the Brits.
One wonders if more will come out on Mr Adams, I will keep a ear out for anymore.