Corruption
While going through customs at airports, certain Liberian officials would ask for money. Bribes may be sought by police officers and other government authorities. If you refuse to pay, you may face complications. If you are dealing with a corrupt official, tell them you will seek guidance from the Canadian Embassy and get a signed official receipt for any funds paid.
This tends to deter them from asking for bribes. Liberia is one of the most politically corrupt countries in the world, with corruption pervasive at all levels of society. As a result, corruption is not particularly a criminal offense under Liberian law, exacerbating the country's corruption problem.
President Sirleaf declared corruption to be "the greatest public adversary" when she assumed office in 2006. Deborah Malac, the US ambassador to Liberia at the time, remarked in 2014 that "In Liberia, corruption is still a major issue. Transparency, accountability, and public trust in government institutions are all harmed." This is absolutely one of the things to know before traveling to Liberia.