There are certain things which are known as banned items when going for a travel by an airplane. These things will be captured by security agents once they checked your bags or luggage. These items are not allowed inside the airport especially inside the plane.
PASSENGER AND CABIN BAGGAGE
List of Prohibited Articles on person or in hand baggage
Without prejudice to applicable safety rules, passengers are not permitted to carry the following articles into security restricted areas and on board an aircraft: