Custodia is daily led by its six-member board: Yasmina Mahali (Chair), Michelle Plug (Secretary), Marnix Tissing (Treasurer), Indra Schieferbein (Head of Internal Affairs), Barbara Krakovská (Head of External Affairs & Vice Chair), Paul Holleman (Head of Master Affairs). 

If you have a question regarding any of our board members' responsibilities, do not hesitate to send us an e-mail.

Board IV


Yasmina Mahali


I'm Yasmina Mahali and I am a 23 year old second year Security Studies student. I am originally from Belgium but have lived abroad for most of my life. Being this year's president was a step out of my comfort zone but very quickly I realized that this was one of the best decisions i've made. Looking forward to meet all of our members and continue to provide the best experience for our members!


Michelle Plug 


Hi there! My name is Michelle and I am a 24 year old, third year student of Security studies from Rijnsburg. The past years I have learned a lot when I was part of the committees and met some great people at Custodia. Therefore I am pretty excited to be Secretary this year.


Marnix Tissing


I am Marnix Tissing, 24 years old and  2nd Year Treasurer at L.S.A. Custodia, currently studying MSc Crisis & Security Management. I oversee the financial operations at the association, in addition supporting my fellow board members in day to day operations. Current focusses are on the Master Career event, and developing long term strategic continuity for our association.


Indra Schieferbein

Head of Internal Affairs

Hi everyone! My name is Indra, I am 25 years old and I am currently a third year student of the Bachelor Security Studies. As the head of internal affairs, I'm overseeing the internal committees, which allows me to connect with fellow students, develop my professional skills and gain confidence for my future career.


Barbara Krakovska

Head of External Affairs

Hi everyone, my name is Barbara and I am a third year student of Security studies from Slovakia. I found Custodia as a great place to meet friends, but also improve my professional skills and I am very excited to be the Head of External affairs this year!


Paul Holleman

Head of Master Affairs

I am a Msc Crisis and Security Management student in the Intelligence and National Security track. I oversee all Custodia activities catered to CSM students. On top of that I am the project co-lead for career events in collaboration with the Leiden Career Services. Together with my colleagues from the master committee we make sure that the CSM community is as lively as ever. 

  • LinkedIn
  • LinkedIn
  • LinkedIn
  • LinkedIn
  • LinkedIn
  • LinkedIn

Historical Boards

IMG_3829 2.JPG



Back row from left to right: Paul Holleman (Head of Master Affairs), Marnix Tissing (Treasurer), Michelle Plug (Secretary)


Front row from left to right: Barbara Krakovska (Head of External Affairs), Yasmina Mahali (President) & Indra Schieferbein (Head of Internal Affairs)





Internal Affairs

External Affairs

Master Affairs